File:Anson1948 fig16.jpg - Revision history

Z8600021: /* Fig. 16. Drawings of a reconstruction of the stapes in a fetus at term */

2017-10-14T01:07:39Z

Fig. 16. Drawings of a reconstruction of the stapes in a fetus at term

← Older revision		Revision as of 12:07, 14 October 2017
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	==Fig. 16. Drawings of a reconstruction of the stapes in a fetus at term==		==Fig. 16. Drawings of a reconstruction of the stapes in a fetus at term==

	(Wisconsin series 102) ; x 7: (a) the reconstruction entire, seen from a superolateral position; (b) segment of anterior crus; (.2) segment of posterior crus; (d) lateral part of the reconstruction, in posteromedial view. In a are indicated the limits of the segments shown in b and c.		(Wisconsin series 102) ; x 7: (a) the reconstruction entire, seen from a superolateral position; (b) segment of anterior crus; (c) segment of posterior crus; (d) lateral part of the reconstruction, in posteromedial view. In a are indicated the limits of the segments shown in b and c.

	The cartilage which covers the vestibular (medial) surface of the base is carried over the fenestral margin as a circumferential lip, while the tympanic (lateral) surface is formed by a plate of irregular bone which is composed of both endochondral and perichondrial bone (:2; cf. ﬁgs. 13a and 14 a). The crura are deeply channeled (16a to c). The head and neck of the ossicle are strikingly eroded, despite the fact that the cavity of the capital portion is crossed by a plate of bone (a and d). This feature of sculpturing is persistent, being encountered in ossicles from adults (specimens from a 57 year old person and from other adults). The anterior crus, much the slenderer and shorter of the crura, is implanted in the base at the inferior margin of the crus (a); at the point of continuity with the head, the crus ﬂattens to meet the intercrural plate (d). The bulkier posterior crus is implanted widely into its portion of the base (a); its cavity, relatively capacious (c), opens into that of the head and neck by a small oriﬁce (d). Cartilage covers the articular surface of the head as a layer of restricted extent (a).		The cartilage which covers the vestibular (medial) surface of the base is carried over the fenestral margin as a circumferential lip, while the tympanic (lateral) surface is formed by a plate of irregular bone which is composed of both endochondral and perichondrial bone (:2; cf. ﬁgs. 13a and 14 a). The crura are deeply channeled (16a to c). The head and neck of the ossicle are strikingly eroded, despite the fact that the cavity of the capital portion is crossed by a plate of bone (a and d). This feature of sculpturing is persistent, being encountered in ossicles from adults (specimens from a 57 year old person and from other adults). The anterior crus, much the slenderer and shorter of the crura, is implanted in the base at the inferior margin of the crus (a); at the point of continuity with the head, the crus ﬂattens to meet the intercrural plate (d). The bulkier posterior crus is implanted widely into its portion of the base (a); its cavity, relatively capacious (c), opens into that of the head and neck by a small oriﬁce (d). Cartilage covers the articular surface of the head as a layer of restricted extent (a).

Z8600021 at 06:59, 13 October 2017

2017-10-13T06:59:34Z

← Older revision		Revision as of 17:59, 13 October 2017
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	{{Footer}}		{{Footer}}
			[[Category:Middle Ear]][[Category:Historic Embryology]][[Category:1940's]]

Z8600021 at 06:58, 13 October 2017

2017-10-13T06:58:58Z

← Older revision		Revision as of 17:58, 13 October 2017
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	The cartilage which covers the vestibular (medial) surface of the base is carried over the fenestral margin as a circumferential lip, while the tympanic (lateral) surface is formed by a plate of irregular bone which is composed of both endochondral and perichondrial bone (:2; cf. ﬁgs. 13a and 14 a). The crura are deeply channeled (16a to c). The head and neck of the ossicle are strikingly eroded, despite the fact that the cavity of the capital portion is crossed by a plate of bone (a and d). This feature of sculpturing is persistent, being encountered in ossicles from adults (specimens from a 57 year old person and from other adults). The anterior crus, much the slenderer and shorter of the crura, is implanted in the base at the inferior margin of the crus (a); at the point of continuity with the head, the crus ﬂattens to meet the intercrural plate (d). The bulkier posterior crus is implanted widely into its portion of the base (a); its cavity, relatively capacious (c), opens into that of the head and neck by a small oriﬁce (d). Cartilage covers the articular surface of the head as a layer of restricted extent (a).		The cartilage which covers the vestibular (medial) surface of the base is carried over the fenestral margin as a circumferential lip, while the tympanic (lateral) surface is formed by a plate of irregular bone which is composed of both endochondral and perichondrial bone (:2; cf. ﬁgs. 13a and 14 a). The crura are deeply channeled (16a to c). The head and neck of the ossicle are strikingly eroded, despite the fact that the cavity of the capital portion is crossed by a plate of bone (a and d). This feature of sculpturing is persistent, being encountered in ossicles from adults (specimens from a 57 year old person and from other adults). The anterior crus, much the slenderer and shorter of the crura, is implanted in the base at the inferior margin of the crus (a); at the point of continuity with the head, the crus ﬂattens to meet the intercrural plate (d). The bulkier posterior crus is implanted widely into its portion of the base (a); its cavity, relatively capacious (c), opens into that of the head and neck by a small oriﬁce (d). Cartilage covers the articular surface of the head as a layer of restricted extent (a).


	===Reference===		===Reference===

Z8600021: Z8600021 uploaded a new version of File:Anson1948 fig16.jpg

2017-10-13T05:55:39Z

Z8600021 uploaded a new version of File:Anson1948 fig16.jpg

← Older revision	Revision as of 16:55, 13 October 2017
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Z8600021 at 05:54, 13 October 2017

2017-10-13T05:54:05Z

← Older revision		Revision as of 16:54, 13 October 2017
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	==Fig. 16. ==		==Fig. 16. Drawings of a reconstruction of the stapes in a fetus at term==

			(Wisconsin series 102) ; x 7: (a) the reconstruction entire, seen from a superolateral position; (b) segment of anterior crus; (.2) segment of posterior crus; (d) lateral part of the reconstruction, in posteromedial view. In a are indicated the limits of the segments shown in b and c.

			The cartilage which covers the vestibular (medial) surface of the base is carried over the fenestral margin as a circumferential lip, while the tympanic (lateral) surface is formed by a plate of irregular bone which is composed of both endochondral and perichondrial bone (:2; cf. ﬁgs. 13a and 14 a). The crura are deeply channeled (16a to c). The head and neck of the ossicle are strikingly eroded, despite the fact that the cavity of the capital portion is crossed by a plate of bone (a and d). This feature of sculpturing is persistent, being encountered in ossicles from adults (specimens from a 57 year old person and from other adults). The anterior crus, much the slenderer and shorter of the crura, is implanted in the base at the inferior margin of the crus (a); at the point of continuity with the head, the crus ﬂattens to meet the intercrural plate (d). The bulkier posterior crus is implanted widely into its portion of the base (a); its cavity, relatively capacious (c), opens into that of the head and neck by a small oriﬁce (d). Cartilage covers the articular surface of the head as a layer of restricted extent (a).

	===Reference===		===Reference===

Z8600021: ==Fig. 16. == ===Reference=== {{Ref-Anson1948}} {{Footer}}

2017-10-13T05:47:50Z

==Fig. 16. == ===Reference=== {{Ref-Anson1948}} {{Footer}}

New page

==Fig. 16. ==

===Reference===
{{Ref-Anson1948}}

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