Category:Carnegie Embryo 211

From Embryology

This Embryology category shows pages and images that relate to the Carnegie Collection Embryo No. 449. This embryo would be early fetal development Week 9 based upon the CRL 33 mm.


Fetal Links: fetal | Week 10 | Week 12 | second trimester | third trimester | fetal neural | Fetal Blood Sampling | fetal growth restriction | birth | birth weight | preterm birth | Developmental Origins of Health and Disease | macrosomia | BGD Practical | Medicine Lecture | Science Lecture | Lecture Movie | Category:Human Fetus | Category:Fetal
Historic Embryology  
1940 Fetus Physiology
Carnegie Fetal: 95 | 96 | 142 | 145 | 184 | 211 | 217 | 300 | 362 | 448 | 449 | 538 | 590 | 607 | 625 | 662 | 693 | 847 | 858 | 922 | 928 | 948 | 972 | 1318 | 1388 | 1455 | 1591 | 1597b | 1656 | 1686 | 2250a | 2250b | 3990 | 5652 | 6581 | 7218


Carnegie Collection - Fetal  
Serial No. Size CRL (mm) Grade Fixative Embedding Medium Plane Thinness (µm) Stain Point Score Sex Year Notes
95 40 catalogued as CRL 40 but development suggests 50 stage. Spinal cord - Kunitomo (1920)[1] Colon - Lineback (1920)[2]
96 50 Brain venous sinuses - Streeter (1915)[3] Spinal cord - Kunitomo (1920)[1] Brain vascular - Streeter (1921)[4] Brain weight - Jenkins (1921)[5]
142 125 Spinal cord - Kunitomo (1920)[1]
145 33 Spinal cord - Kunitomo (1920)[1]
184 50 34 vertebrae, 31 spinal ganglia, Spinal cord - Kunitomo (1920)[1]
211 33 34 vertebra, 31 spinal ganglia, Spinal cord - Kunitomo (1920)[1]
217 45 Male Genital - Spaulding (1921)[6]
300 73 85 days, Bone ossification - Mall (1906)[7]
362 30 Spinal cord - Kunitomo (1920)[1]
448 52 Colon - Lineback (1920)[2]
449 36 Spinal cord - Kunitomo (1920)[1]
538
590 21 to 23 Male Genital - Spaulding (1921)[6]
607 37 Male Genital - Spaulding (1921)[6]
625 220 Temporomandibular joint - Moffatt (1957)[8]
662 80 Spinal cord - Kunitomo (1920)[1]
693 45 Male Genital - Spaulding (1921)[6]
847 58.8 Male Genital - Spaulding (1921)[6]
858 57.25 Temporomandibular joint - Moffatt (1957)[8]
922 37
928 120 Spinal cord - Kunitomo (1920)[1]
948 45 Male Genital - Spaulding (1921)[6]
972 37 34 vertebrae, 30 spinal ganglia, Spinal cord - Kunitomo (1920)[1]
1318 37 Temporomandibular joint - Moffatt (1957)[8]
1388 51 Female Genital - Spaulding (1921)[6]
1455 78.5 Temporomandibular joint - Moffatt (1957)[8]
1591 36 subcutaneous vascular plexus - Finley (1923)[9]
1656 67 34 vertebrae, Spinal cord - Kunitomo (1920)[1]
1686 40 Male Genital - Spaulding (1921)[6]
3990 49 Temporomandibular joint - Moffatt (1957)[8]
4473 43 20 Spinal cord meninges - Sensenig (1951)[10]
4475 48 20 Spinal cord meninges - Sensenig (1951)[10]
5652 49 Temporomandibular joint - Moffatt (1957)[8]
6581 75 Temporomandibular joint - Moffatt (1957)[8]
7218 80 20 um Spinal cord meninges - Sensenig (1951)[10]
1597b 47 Female Genital - Spaulding (1921)[6]
2250a 40 Female Genital - Spaulding (1921)[6]
2250b 36 Female Genital - Spaulding (1921)[6]
This table currently contains only has embryo number information.

Abbreviations

  • Size - E. is the greatest length of the embryo and Ch. is the mean diameter of the chorion.
  • Grade - total grade of the specimen and includes both its original quality and the condition of the mounted sections.
  • Embedding medium - paraffin (P) or a combination of celloidin and paraffin (C-P).
  • Fixative - formalin (Formol), alcohol and formalin (Alc, formol), Bouin (Bouin solution)
  • Stain -
  •  ? - unknown or not determined.
References
  1. 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 1.11 Kunitomo K. The development and reduction of the tail and of the caudal end of the spinal cord (1920) Contrib. Embryol., Carnegie Inst. Wash. Publ. 272, 9: 163-198.
  2. 2.0 2.1 Lineback PE. Studies on the longitudinal muscle of the human colon, with special reference to the development of the taeniae. (1920) Contrib. Embryol., Carnegie Inst. Wash. Publ. 50
  3. Streeter GL. The development of the venous sinuses of the dura mater in the human embryo. (1915) Amer. J Anat.18: 145-178.
  4. Streeter GL. The developmental alterations in the vascular system of the brain of the human embryo. (1921) Contrib. Embryol., Carnegie Inst. Wash. 8:7-38.
  5. Jenkins GB. Relative weight and volume of the component parts of the brain of the human embryo at different stages of development. (1921) Contrib. Embryol., Carnegie Inst. Wash., 59: 5-54.
  6. 6.00 6.01 6.02 6.03 6.04 6.05 6.06 6.07 6.08 6.09 6.10 Spaulding MH. The development of the external genitalia in the human embryo. (1921) Contrib. Embryol., Carnegie Inst. Wash. Publ. 81, 13: 69 – 88.
  7. Mall FP. On ossification centers in human embryos less than one hundred days old. (1906) Amer. J Anat. 5:433-458.
  8. 8.0 8.1 8.2 8.3 8.4 8.5 8.6 Moffatt BC. The prenatal development of the human temporomandibular joint. (1957) Carnegie Instn. Wash. Publ. 611, Contrib. Embryol., 36: .
  9. Finley EB. The development of the subcutaneous vascular plexus in the head of the human embryo. (1923) Contributions to Embryology Carnegie Institution No.71; 155-161.
  10. 10.0 10.1 10.2 Sensenig EC. The early development of the meninges of the spinal cord in human embryos. (1951) Contrib. Embryol., Carnegie Inst. Wash. Publ. 611,
Fertilization and Gestational Age - Crown-Rump Length (ultrasound
Fertilization Age
(days)
Gestational Age
GA (week.day)
Crown-Rump
Length (mm)
37 5.2 1
38 5.3 2
39 5.4 3
40 55 3
41 5.6 4
42    Week 4 6 4
43 6.1 5
44 6.2 6
45 6.3 7
46 6.4 8
47 6.5 9
48 6.6 10
49    Week 5 7 11
50 7.1 11
51 7.2 12
52 7.3 12
53 7.4 13
54 7.5 14
55 7.6 15
56    Week 6 8 17
57 8.1 18
58 8.2 19
59 8.3 20
60 8.4 21
61 8.5 22
62 8.6 22
63    Week 7 9 23
64 9.1 24
65 9.2 26
66 9.3 27
67 9.4 28
68 9.5 29
69 9.6 31
70    Week 8 10 34
71 10.1 36
72 10.2 37
73 10.3 38
74 10.4 39
75 10.5 39
76 10.6 40
77    Week 9 11 44
78 11.1 45
79 11.2 47
80 11.3 48
81 11.4 52
82 11.5 55
83 11.6 56
84    Week 10 12 57
85 12.1 58
86 12.2 60
87 12.3 61
88 12.4 63
89 12.5 64
90 12.6 65
91    Week 11 13 68
92 13.1 70
93 13.2 72
94 13.3 74
95 113.4 76
96 135 77
97 13.6 80
98    Week 12 14 81
99 14.1 84
100 14.2 85
101 14.3 86
102 14.4 87
Reference: Table data measured by ultrasound, adapted from Westerway (2015) PDF and[1]
Links: ultrasound | Fetal Development


  • Spinal cord - Kunitomo (1920)[2]

References

  1. Westerway SC, Davison A & Cowell S. (2000). Ultrasonic fetal measurements: new Australian standards for the new millennium. Aust N Z J Obstet Gynaecol , 40, 297-302. PMID: 11065037
  2. Kunitomo K. The development and reduction of the tail and of the caudal end of the spinal cord (1920) Contrib. Embryol., Carnegie Inst. Wash. Publ. 272, 9: 163-198.


Embryo No. 211, 33 mm Crown-Rump Length

Kunitomo K. The development and reduction of the tail and of the caudal end of the spinal cord (1920) Contrib. Embryol., Carnegie Inst. Wash. Publ. 272, 9: 163-198.

Embryo No. 211 has 34 vertebra and 31 spinal ganglia. The vertebral column curves ventrally at the thirty-first and thirty-second vertebra. The caudal end of the chorda dorsalis is undergoing regression and appears to be branching.

The caudal end of the spinal cord may be divided into three portions: (1) the primordiinn of the conus medullaris, which includes the primordium of the ventriculus terminalis; (2) the filum terminale; (3) the coccygeal medullary vestige. The first extends about the length of the thirtieth and thirty-first vertebrae, tapering gradually towards its caudal end.

The ventriculus terminalis, which is included in the conus medullaris, expands in the medial part dorsoventrally and transversely. The upper part of this cavity, which marks the entrance of the central canal, narrows slightly; the caudal end narrows sharply and forms a canal which terminates blindly at the end of the conus medullaris. The wall of the ventriculus terminalis consists of gray and white substance and the cavity is lined with a layer of ependymal cells. The dorsal wall is thicker than the ventral wall. The filum terminale extends from the caudal end of the conus medullaris, wathout definite boundaries, to a level between the thirty-second and thirty-third vertebrae. Its caudal end is represented by a slender bundle of nerve-fibers, and in its cranial portion there is a strand of ependymal cells.

The large coccygeal medullary vestige is situated dorsal to the thirty-third and thirty-fourth vertebrae and its wall is thrown into a number of folds. At the caudal end it has two processes, one extending ventrally, the other dorsally. The latter enters into a rounded eminence at the caudal end of the embryo which represents a tail-bud, termed by Unger and Brugsch caudal tuberck. The post-anal swelling is well developed, while the coccygeal tubercle is scarcely to be made out.


Cite this page: Hill, M.A. (2019, July 21) Embryology Carnegie Embryo 211. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Category:Carnegie_Embryo_211

What Links Here?
© Dr Mark Hill 2019, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G

Pages in category ‘Carnegie Embryo 211’

The following 2 pages are in this category, out of 2 total.