Anatomical Record 6 (1912) - Revision history

Z8600021: /* No. 7. JULY */

2020-06-19T00:47:38Z

No. 7. JULY

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	* {{Ref-Malone1912}} Four figures 281		* {{Ref-Malone1912}} Four figures 281

	~~{{Ref-Mall1912}}~~
	* Franklin P. Mall. Aneurysm of the membranous septum projecting into the right atrium. Three figures 291		* Franklin P. Mall. Aneurysm of the membranous septum projecting into the right atrium. Three figures 291

Z8600021: /* No. 7. JULY */

2020-06-19T00:33:21Z

No. 7. JULY

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	* B. W. Kunkel. On a double fenestral structure in Emys. Twenty-four figures 267		* B. W. Kunkel. On a double fenestral structure in Emys. Twenty-four figures 267
	* {{Ref-Malone1912}} Four figures 281		* {{Ref-Malone1912}} Four figures 281

			{{Ref-Mall1912}}
	* Franklin P. Mall. Aneurysm of the membranous septum projecting into the right atrium. Three figures 291		* Franklin P. Mall. Aneurysm of the membranous septum projecting into the right atrium. Three figures 291

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2020-06-19T00:28:48Z

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	beim Sauger-embryo. Verhandl. d. Anat. Gesellsch., 1910. The anatomy and development of the systemic lymphatic vessels in the domestic cat. Memoirs of The Wistar In.stitute of Anatomy and Biology, May, 1911.		beim Sauger-embryo. Verhandl. d. Anat. Gesellsch., 1910. The anatomy and development of the systemic lymphatic vessels in the domestic cat. Memoirs of The Wistar In.stitute of Anatomy and Biology, May, 1911.

	~~228~~

	~~THB ANATOMICAL RECORD, VOL. 6, NO. 6 JCNE, 1912~~



	~~224 OTTO F. KAMPMEIER~~

	and ]McClure,'^ in their studies on the development of the thoracic duct and mesenteric lymphatics in the cat, are quite probably artifacts or shrinkage cavities resulting from unequal fixation, since they occur in the center of the body where the fixing fluid penetrates last."		and ]McClure,'^ in their studies on the development of the thoracic duct and mesenteric lymphatics in the cat, are quite probably artifacts or shrinkage cavities resulting from unequal fixation, since they occur in the center of the body where the fixing fluid penetrates last."
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	~~GENERAL OBSERVATIONS ON EARLY SUPERFK~~:L\L ~~LYMPHATICS IN LIVING CHICK EMBRYOS~~		===General Observations On Early Superfk:L\L Lymphatics In Living Chick Embryos===

			{{Ref-Clark1912a}}


	PRELIMINARY NOTE		PRELIMINARY NOTE
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	A living chick of five days and twent}^ hours was then examined under the high power binocular microscope, in bright sunlight. Care was taken in opening the shell not to injure the embryo, and the j^olk sac was kept intact. Observation of the region in the tail, later occupied by the posterior lymph heart, revealed the presence of two distinct sets of vessels. The first of these was undoubtedly composed of blood capillaries. With brilliant illumination this richly anastamosing plexus could be plainly seen and the direction of circulation in the individual capillaries made out.		A living chick of five days and twent}^ hours was then examined under the high power binocular microscope, in bright sunlight. Care was taken in opening the shell not to injure the embryo, and the j^olk sac was kept intact. Observation of the region in the tail, later occupied by the posterior lymph heart, revealed the presence of two distinct sets of vessels. The first of these was undoubtedly composed of blood capillaries. With brilliant illumination this richly anastamosing plexus could be plainly seen and the direction of circulation in the individual capillaries made out.

	But in the living chick another distinct blood-filled plexus was visible. For the most part it appeared to be deeper than the superficial blood capillary plexus and nearer the coccygeal veins. This second plexus was found to be easily distinguishable from the blood capillaries in four ways: (1) the vessels composing it are in general larger than the blood capillaries,		But in the living chick another distinct blood-filled plexus was visible. For the most part it appeared to be deeper than the superficial blood capillary plexus and nearer the coccygeal veins. This second plexus was found to be easily distinguishable from the blood capillaries in four ways: (1) the vessels composing it are in general larger than the blood capillaries, (2) their pattern is different, (3) the blood contained in them is of a darker red color, and (4) no circulation can be observed in them. The last feature is the most striking, for in contrast to the rapid motion of the blood corpuscles in all of the capillaries of the first plexus, the blood of this second plexus remains stagnant. This plexus of vessels with stagnant blood was found to be constant in chicks of this and somewhat later stages.

	~~247~~



	~~248 ELEANOR LINTON CLARK~~

	(2) their pattern is different, (3) the blood contained in them is of a darker red color, and (4) no circulation can be observed in them. The last feature is the most striking, for in contrast to the rapid motion of the blood corpuscles in all of the capillaries of the first plexus, the blood of this second plexus remains stagnant. This plexus of vessels with stagnant blood was found to be constant in chicks of this and somewhat later stages.

	Next, various tests were made to determine further the character of this plexus filled with stagnant blood, and its relation to the blood vascular system.^ They are as follows:		Next, various tests were made to determine further the character of this plexus filled with stagnant blood, and its relation to the blood vascular system.^ They are as follows:
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	~~OBSKinATlOXS ox THE DEVELOPMENT OF THE E.'VRLIEST LYMPHATICS IN THE REGION OF THE POSTER lOK LYMPH HEART IN LIVING CHICK EMBRYOS~~		===Observations on the Development Of The Earliest Lymphatics In The Region Of The Poster Lok Lymph Heart In Living Chick Embryos===

			{{Ref-ClarkClark1912}}



	PRELIMINARY NOTE		PRELIMINARY NOTE
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	By using a warm chamber it was possible to keep chicks alive and under observation for from five to seven hours. This proved to be long enough for our purposes.		By using a warm chamber it was possible to keep chicks alive and under observation for from five to seven hours. This proved to be long enough for our purposes.

	~~25.3~~



	~~254 ELIOT R. CLARK AND ELEANOR LINTON CLARK~~

	The lymphatics in the posterior Ijnnph heart region first appear in chicks of approximatelj^ five days of incubation, measuring immediately after being placed in the fixing fluid, between 12 and 13 mm. greatest length; though we have found considerable variation in both age and length. The embryo is at approximately the stage represented in fig. 29 of Keibel and Abraham's 'Normentaf eln . '		The lymphatics in the posterior Ijnnph heart region first appear in chicks of approximatelj^ five days of incubation, measuring immediately after being placed in the fixing fluid, between 12 and 13 mm. greatest length; though we have found considerable variation in both age and length. The embryo is at approximately the stage represented in fig. 29 of Keibel and Abraham's 'Normentaf eln . '
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	~~INJECTION AND RECONSTRUCTION OF THE JUGULAR LYMPH~~ "~~SAC~~" ~~IN THE CHICK~~		===Injection And Reconstruction Of The Jugular Lymph "Sac" In The Chick===

			{{Ref-Clark1912b}}

	~~ELEANOR LINTON CLARK~~		Eleanor Linton Clark

	From the Anatomical Laboratory of The Johns Hopkins University		From the Anatomical Laboratory of The Johns Hopkins University

Z8600021: /* No. 6. JUNE */

2020-06-19T00:25:49Z

No. 6. JUNE

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	{{Ref-Clark1912a}}		{{Ref-Clark1912a}}

	* Eleanor Linton Clark. General observations on early superficial lymphatics in living chick embryos 249

	{{Ref-ClarkClark1912}}		{{Ref-ClarkClark1912}}

	* Eliot R. Clark and Eleanor L. Clark. Observations on the development of the earliest lymphatics in the region of the posterior lymph heart in living chick embryos 255

	{{Ref-Clark1912b}}		{{Ref-Clark1912b}}

	* Eleanor Linton Clark. Injection and reconstruction of the jugular lymph 'sac' in the chick. One figure 263

	===No. 7. JULY===		===No. 7. JULY===

Z8600021: /* No. 6. JUNE */

2020-06-19T00:20:00Z

No. 6. JUNE

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	* Otto F. Kampmeier. The value of the injection method in the study of lymphatic development. Six figures 223		* Otto F. Kampmeier. The value of the injection method in the study of lymphatic development. Six figures 223
	* Charles F. W. McClure. A few remarks relative to Mr. Kampmeier's paper on 'The value of the injection method in the study of lymphatic development' 233		* Charles F. W. McClure. A few remarks relative to Mr. Kampmeier's paper on The value of the injection method in the study of lymphatic development 233

			{{Ref-Clark1912a}}

	* Eleanor Linton Clark. General observations on early superficial lymphatics in living chick embryos 249		* Eleanor Linton Clark. General observations on early superficial lymphatics in living chick embryos 249

			{{Ref-ClarkClark1912}}

	* Eliot R. Clark and Eleanor L. Clark. Observations on the development of the earliest lymphatics in the region of the posterior lymph heart in living chick embryos 255		* Eliot R. Clark and Eleanor L. Clark. Observations on the development of the earliest lymphatics in the region of the posterior lymph heart in living chick embryos 255

			{{Ref-Clark1912b}}

	* Eleanor Linton Clark. Injection and reconstruction of the jugular lymph 'sac' in the chick. One figure 263		* Eleanor Linton Clark. Injection and reconstruction of the jugular lymph 'sac' in the chick. One figure 263

Z8600021: /* On the relation of the chorda dorsalis to the anlage of the pharyngeal bursa or median pharyngeal recess */

2020-06-19T00:10:57Z

On the relation of the chorda dorsalis to the anlage of the pharyngeal bursa or median pharyngeal recess

← Older revision		Revision as of 11:10, 19 Haziran 2020
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	===On the relation of the chorda dorsalis to the anlage of the pharyngeal bursa or median pharyngeal recess===		===On the relation of the chorda dorsalis to the anlage of the pharyngeal bursa or median pharyngeal recess===

	(1. ~~CAUL IIUBKR~~ From The ~~Wislar~~ Institute of Atiatotny <inil Biology		{{Ref-Huber1912}}

			G. CARL HUBER From The Wistar Institute of Atiatotny <inil Biology

	SEVENTEEN FIGURES		SEVENTEEN FIGURES
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	( IIOKDA DOHSALIS AM) I'l I \ IH .\( i i; A L lU USA ."^7')		( IIOKDA DOHSALIS AM) I'l I \ IH .\( i i; A L lU USA ."^7')

	Ua('lu'ut']>itlu'l, cine {icwissc l'"ixi('iuufi ciucs Tcils soiiicr Zcllcii, jciutrichtt'iforiuigc Ausstiilpmifi, (lie sofj;. Bursa i)liaryuft(';i zur Juitstclnmg zu hriiificu. (lurch ilea Hci'uiul mciiics Pr;i])arat('s cine Stiitzc zu fiiidcu." Killian, whose Dhscrvatioii on the bursa and tousiUa i)haiyuf;('a have \)vvn trciiucntly (luotcd, stuchcd tliis i-csiou in (35 human ciuhryos, 3 newhorn aiul 2 chiKhcn, in all, 70 cases. The embryos and fetuses studied varied in aj^es from three months to eifi,id months. It is to be noted tiiat the younger stages are lacking. In 28 of the 70 cases studied (40 per cent), no l>ursa was present. The 42 cases in which a bursa Avas present he divides into such as presented a well developed bursa, 14 in all, and such as presented a more or less pronounced groove or funnelshaped de]iression, 26 in all. The region in question was studied macroscoi)ically in all cases; 20 of the cases, varying in age from four to eight months, were sectioned and studied microsco])ically. Killian recognized the fact that all of the eml)ryos studied, including those sectioned, were too old to i)resent suggestions as to the anlage and development of the bursa, neither does he find evidence for this in the well known AA'ork of His: "Ziu* Anatomic menschlicher Embryonen." For data concerning the earlier stages he mentions the observations of Froriep, above referred to. Killian reviews critically Froriep's theor}' that a phar^aageal bursa develops in case a retrophar>aigeal accumulation of chorda cells reaches the pharyngeal epithelium, and comes to the conclusion that this theorj^ possesses the fault that it is l)ased on a single observation . Furthermore, since the l)ursa always develops in a definite region, namely — just in front of the u])i:»ermost fillers of the constrictor pharyngis super, which comes in close contact with the lower or posterior wall of the Ijursa as it lies between the heads of the musculi long, capitis, l^oth of which relations ma}' be regarded as characteristic — while, as has l^een sho^m b}' Froriep, several accumulations of chorda cells which approach the phar^^ngeal epithelium are found in the retrophar^aigeal region, and there is no reason why a bursa should not develop anterior to its normal position if close relation of chorda cells and pharyngeal epithelium are to ])e brought into causal relation as concerns the anlage of the pharyngeal bursa. Killian also dismisses the lig. occipito-phar. as a factor in t,he development of the bursa and the fact that in a number of his cases the oral hypophysial duct and the l^ursa were })oth present and separated bj' appreciable distances, excludes the view that persistence of the hypophysial duct and the cranio-phar^aageal canal may be regarded as the anlage of the pharjiigeal bursa. Killian, therefore, regards the bursa as a 'true epithelial outgrowth,' as ma,y be seen from the following statement, summarizing his discussion of the anlage of this structure: "Ich betrachte also die Bursa phar^iagea em])ryonalis als eine wahre AusstulpungderRachenschleimhaut nach hint en und ol^en gegen das Hint erhauptsl^ein, wobei speciell im Epithel das formative Princip zu suchen ist. Sie verdankt nicht mechanischen EiuAvirkungen, sondern einem aktiven Bildungsvorgange ihre Entstehung." Killian presents further very extended comparative anatomic studies, which it would be impossible to cite here in detail. It mav be stated, however, that his results		Ua('lu'ut']>itlu'l, cine {icwissc l'"ixi('iuufi ciucs Tcils soiiicr Zcllcii, jciutrichtt'iforiuigc Ausstiilpmifi, (lie sofj;. Bursa i)liaryuft(';i zur Juitstclnmg zu hriiificu. (lurch ilea Hci'uiul mciiics Pr;i])arat('s cine Stiitzc zu fiiidcu." Killian, whose Dhscrvatioii on the bursa and tousiUa i)haiyuf;('a have \)vvn trciiucntly (luotcd, stuchcd tliis i-csiou in (35 human ciuhryos, 3 newhorn aiul 2 chiKhcn, in all, 70 cases. The embryos and fetuses studied varied in aj^es from three months to eifi,id months. It is to be noted tiiat the younger stages are lacking. In 28 of the 70 cases studied (40 per cent), no l>ursa was present. The 42 cases in which a bursa Avas present he divides into such as presented a well developed bursa, 14 in all, and such as presented a more or less pronounced groove or funnelshaped de]iression, 26 in all. The region in question was studied macroscoi)ically in all cases; 20 of the cases, varying in age from four to eight months, were sectioned and studied microsco])ically. Killian recognized the fact that all of the eml)ryos studied, including those sectioned, were too old to i)resent suggestions as to the anlage and development of the bursa, neither does he find evidence for this in the well known AA'ork of His: "Ziu* Anatomic menschlicher Embryonen." For data concerning the earlier stages he mentions the observations of Froriep, above referred to. Killian reviews critically Froriep's theor}' that a phar^aageal bursa develops in case a retrophar>aigeal accumulation of chorda cells reaches the pharyngeal epithelium, and comes to the conclusion that this theorj^ possesses the fault that it is l)ased on a single observation . Furthermore, since the l)ursa always develops in a definite region, namely — just in front of the u])i:»ermost fillers of the constrictor pharyngis super, which comes in close contact with the lower or posterior wall of the Ijursa as it lies between the heads of the musculi long, capitis, l^oth of which relations ma}' be regarded as characteristic — while, as has l^een sho^m b}' Froriep, several accumulations of chorda cells which approach the phar^^ngeal epithelium are found in the retrophar^aigeal region, and there is no reason why a bursa should not develop anterior to its normal position if close relation of chorda cells and pharyngeal epithelium are to ])e brought into causal relation as concerns the anlage of the pharyngeal bursa. Killian also dismisses the lig. occipito-phar. as a factor in t,he development of the bursa and the fact that in a number of his cases the oral hypophysial duct and the l^ursa were })oth present and separated bj' appreciable distances, excludes the view that persistence of the hypophysial duct and the cranio-phar^aageal canal may be regarded as the anlage of the pharjiigeal bursa. Killian, therefore, regards the bursa as a 'true epithelial outgrowth,' as ma,y be seen from the following statement, summarizing his discussion of the anlage of this structure: "Ich betrachte also die Bursa phar^iagea em])ryonalis als eine wahre AusstulpungderRachenschleimhaut nach hint en und ol^en gegen das Hint erhauptsl^ein, wobei speciell im Epithel das formative Princip zu suchen ist. Sie verdankt nicht mechanischen EiuAvirkungen, sondern einem aktiven Bildungsvorgange ihre Entstehung." Killian presents further very extended comparative anatomic studies, which it would be impossible to cite here in detail. It mav be stated, however, that his results in the main were negative, in that no l:)ursa pharyngea was present in the great majority of the types investigated including representation from vertebrate classes ranging from primates to amjihibia. A true pharyngeal bursa as found in man was ol)served only in Arctomys marmota, although th(> pig, deer and bear presented structures which have been regartled as jihar^Tigeal bursae, and may be homologues of this structure as found in man. Schwaliach treats of the median pharyngeal bursa in two contributions. In the first of these he discusses observations made on 52 heads, of which 28 were of children ranging in age from one day to three years; to these may be added a human fetus of six months. As a result of these studies he is led to believe that the pharyngeal bursa of Luschka represents merely the end of the median depression found in the pharyngeal tonsil, therefore, is not to he considered an anatomic entity, l)ut a ]iart of the phar\iT.geal tonsil. In the second contribution Schwabach treats of the development of the pharj^iigeal tonsil. In all, 45 embryos were studied, of these 43 presented a crown-rump length of 3.1 cm. or more. Ii">. these the vault of the pharjux was exposed by removal of the lower jaw and other necessary parts. The preparations thus obtained were thenexaro.inedmacroscopically; certainof them were then cut in sagittal or frontal sections. Two other embryos of 1.6 cm. and 2.8 cm. croA\7a-rump measurement were cut in sagittal sections. In embryos of less than 6 cm. length no evidence of any depression or infolding of the phar^mgeal vault was ol)served. In embryos ranging from 6 cm. to 7 cm. in cro^\^).-rmnp length there was noted in the median line at the transition of the fornix to the posterior pharyngeal wall a shallow depression or groove which was regarded as the anlage of the pharyngeal tonsil. This depression is said to have reached its maximum in embryos of from 9 cm. to 10 cm. crown-rump length, after which period of development the depression again became shallower, as the adenoid tissue of the phar^mgeal tonsil became evident. Kolhker in his brief discussion of the head chorda makes no mention of its bearing any relation to the phar\aigeal l)ursa, which latter structure is not considered in this connection. In a l)rief note, entitled "The Notochord of the Head in Human Embryos of the Third to the Twelfth Week," Mrs. Gage expresses very clearly and correctly the relatioiis existing l^etween the head chorda and the pharjaigeal entoderm, as the following abstract may show: "In a human specimen of sixty days the relations of the notochord to the cartilaginous base of the skull and the epithelium of the mouth are clear. On emerging from the axis it forms a knotted protuberance dorsal of the base of the skull, passes diagonally through it to a pocket from the roof of the mouth, thence cephalad to come in contact with two other mouth pockets, thence diagonally dorsal through tlie base of the skull, again forming a knot and turning shar])ly ventrad, ending near the hy])oi)hysis, but within the (cartilage." The same relations exist in a specimen of forty-eight days, and at thirty-six days where a condensed mesoderm foreshadows the skull, and at twenty-eight and twenty-one days where the notochord lies directly in contact with the epithelium of the roof of the mouth, thus showing the beginning of the history, Mrs. Gage further reports briefly on a comparative study of



	~~376 G. CARL HUBER~~

	in the main were negative, in that no l:)ursa pharyngea was present in the great majority of the types investigated including representation from vertebrate classes ranging from primates to amjihibia. A true pharyngeal bursa as found in man was ol)served only in Arctomys marmota, although th(> pig, deer and bear presented structures which have been regartled as jihar^Tigeal bursae, and may be homologues of this structure as found in man. Schwaliach treats of the median pharyngeal bursa in two contributions. In the first of these he discusses observations made on 52 heads, of which 28 were of children ranging in age from one day to three years; to these may be added a human fetus of six months. As a result of these studies he is led to believe that the pharyngeal bursa of Luschka represents merely the end of the median depression found in the pharyngeal tonsil, therefore, is not to he considered an anatomic entity, l)ut a ]iart of the phar\iT.geal tonsil. In the second contribution Schwabach treats of the development of the pharj^iigeal tonsil. In all, 45 embryos were studied, of these 43 presented a crown-rump length of 3.1 cm. or more. Ii">. these the vault of the pharjux was exposed by removal of the lower jaw and other necessary parts. The preparations thus obtained were thenexaro.inedmacroscopically; certainof them were then cut in sagittal or frontal sections. Two other embryos of 1.6 cm. and 2.8 cm. croA\7a-rump measurement were cut in sagittal sections. In embryos of less than 6 cm. length no evidence of any depression or infolding of the phar^mgeal vault was ol)served. In embryos ranging from 6 cm. to 7 cm. in cro^\^).-rmnp length there was noted in the median line at the transition of the fornix to the posterior pharyngeal wall a shallow depression or groove which was regarded as the anlage of the pharyngeal tonsil. This depression is said to have reached its maximum in embryos of from 9 cm. to 10 cm. crown-rump length, after which period of development the depression again became shallower, as the adenoid tissue of the phar^mgeal tonsil became evident. Kolhker in his brief discussion of the head chorda makes no mention of its bearing any relation to the phar\aigeal l)ursa, which latter structure is not considered in this connection. In a l)rief note, entitled "The Notochord of the Head in Human Embryos of the Third to the Twelfth Week," Mrs. Gage expresses very clearly and correctly the relatioiis existing l^etween the head chorda and the pharjaigeal entoderm, as the following abstract may show: "In a human specimen of sixty days the relations of the notochord to the cartilaginous base of the skull and the epithelium of the mouth are clear. On emerging from the axis it forms a knotted protuberance dorsal of the base of the skull, passes diagonally through it to a pocket from the roof of the mouth, thence cephalad to come in contact with two other mouth pockets, thence diagonally dorsal through tlie base of the skull, again forming a knot and turning shar])ly ventrad, ending near the hy])oi)hysis, but within the (cartilage." The same relations exist in a specimen of forty-eight days, and at thirty-six days where a condensed mesoderm foreshadows the skull, and at twenty-eight and twenty-one days where the notochord lies directly in contact with the epithelium of the roof of the mouth, thus showing the beginning of the history, Mrs. Gage further reports briefly on a comparative study of


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	Am. Jour. Anat., vol. 8.		Am. Jour. Anat., vol. 8.



	===Dimorphism In The Spermatozoa Of Necturus Maculosus===		===Dimorphism In The Spermatozoa Of Necturus Maculosus===

Z8600021: /* Adult Human Ovaries With Follicles Containing Several Oocytes */

2020-06-19T00:08:59Z

Adult Human Ovaries With Follicles Containing Several Oocytes

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	===Adult Human Ovaries With Follicles Containing Several Oocytes===		===Adult Human Ovaries With Follicles Containing Several Oocytes===

			{{Ref-Arnold1912}}

	Lloyd Arnold From the Department of Anatomy, The Tulane University of Louisiana		Lloyd Arnold From the Department of Anatomy, The Tulane University of Louisiana
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	Honor6, Ch. 1900 Recherches sur l'ovaire du lapin. Archives de Biol., torn. 17.		Honor6, Ch. 1900 Recherches sur l'ovaire du lapin. Archives de Biol., torn. 17.



	===On The Teleostean Forebrain===		===On The Teleostean Forebrain===

Z8600021: /* On The Origin Of The Abdominal Lymphatic's In Mammals From The Vena Cava And The Renal Veins */

2020-06-19T00:08:06Z

On The Origin Of The Abdominal Lymphatic's In Mammals From The Vena Cava And The Renal Veins

← Older revision		Revision as of 11:08, 19 Haziran 2020
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	===On The Origin Of The Abdominal Lymphatic's In Mammals From The Vena Cava And The Renal Veins===		===On The Origin Of The Abdominal Lymphatic's In Mammals From The Vena Cava And The Renal Veins===

			{{Ref-Sabin1912a}}

	{{Ref-Sabin1912}}		{{Ref-Sabin1912}}

	~~{{Ref-Sabin1912b}}~~

	Florence R. Sabin		Florence R. Sabin
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	From The A nalumical Laboratory, The Johns Hopkins U nivcrsily		From The A nalumical Laboratory, The Johns Hopkins U nivcrsily

	It is a pleasure to have for study Mr. Kampmeier's able and ~~valual)l(>~~ paper on the thoracic duct, as seen in one of my specimens, in the June number of The Anatomical Record. His direct dorsal view of a wax reconstruction of the jugular lymphatics brings out one point better than my profile reconstruction sho^vn to the American Association of Anatomists in 1910. This point is the crossing of the thoracic duct to the right side which I have often, though not always noted, in injections of later stages. Moreover, his paper is a clear and excellent presentation of the theory of the ~~gro^\•th~~ of lymphatics by the addition of tissue spaces.		It is a pleasure to have for study Mr. Kampmeier's able and valuable paper on the thoracic duct, as seen in one of my specimens, in the June number of The Anatomical Record. His direct dorsal view of a wax reconstruction of the jugular lymphatics brings out one point better than my profile reconstruction sho^vn to the American Association of Anatomists in 1910. This point is the crossing of the thoracic duct to the right side which I have often, though not always noted, in injections of later stages. Moreover, his paper is a clear and excellent presentation of the theory of the growth of lymphatics by the addition of tissue spaces.

	My own Avork on the thoracic duct is to appear in a forthcoming number of the Ergebnisse ftir Anatomic unci Entwicklungsgeschichte, but I should like to present this preliminary note.		My own Avork on the thoracic duct is to appear in a forthcoming number of the Ergebnisse ftir Anatomic unci Entwicklungsgeschichte, but I should like to present this preliminary note.

Z8600021: /* On The Origin Of The Abdominal Lymphatic's In Mammals From The Vena Cava And The Renal Veins */

2020-06-19T00:07:02Z

On The Origin Of The Abdominal Lymphatic's In Mammals From The Vena Cava And The Renal Veins

← Older revision		Revision as of 11:07, 19 Haziran 2020
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	===On The Origin Of The Abdominal Lymphatic's In Mammals From The Vena Cava And The Renal Veins===		===On The Origin Of The Abdominal Lymphatic's In Mammals From The Vena Cava And The Renal Veins===
	{{Ref-Sabin1912}}		{{Ref-Sabin1912}}

			{{Ref-Sabin1912b}}

	Florence R. Sabin		Florence R. Sabin

Z8600021: /* On The Origin Of The Abdominal Lymphatic's In Mammals From The Vena Cava And The Renal Veins */

2020-06-19T00:06:21Z

On The Origin Of The Abdominal Lymphatic's In Mammals From The Vena Cava And The Renal Veins

← Older revision		Revision as of 11:06, 19 Haziran 2020
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	===On The Origin Of The Abdominal Lymphatic's In Mammals From The Vena Cava And The Renal Veins===		===On The Origin Of The Abdominal Lymphatic's In Mammals From The Vena Cava And The Renal Veins===
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	Florence R. Sabin		Florence R. Sabin