Category:Mouse E18

From Embryology

The Embryology pages and media listed below relate to mouse embryonic day 18 E18 of development. This staging by "days" relate to in the female presence of a vaginal plug indicating that the mating occurred, see timed pregnancy. This mouse date corresponds to the human fetal period of development.

Mouse Stages: E1 | E2.5 | E3.0 | E3.5 | E4.5 | E5.0 | E5.5 | E6.0 | E7.0 | E7.5 | E8.0 | E8.5 | E9.0 | E9.5 | E10 | E10.5 | E11 | E11.5 | E12 | E12.5 | E13 | E13.5 | E14 | E14.5 | E15 | E15.5 | E16 | E16.5 | E17 | E18.5 | E18 | E18.5 | E19 | E20 | Timeline | About timed pregnancy


Species Embryonic Comparison Timeline
Carnegie Stage
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
Human Days 1 2-3 4-5 5-6 7-12 13-15 15-17 17-19 20 22 24 28 30 33 36 40 42 44 48 52 54 55 58
Mouse Days 1 2 3 E4.5 E5.0 E6.0 E7.0 E8.0 E9.0 E9.5 E10 E10.5 E11 E11.5 E12 E12.5 E13 E13.5 E14 E14.5 E15 E15.5 E16
Rat Days 1 3.5 4-5 5 6 7.5 8.5 9 10.5 11 11.5 12 12.5 13 13.5 14 14.5 15 15.5 16 16.5 17 17.5
Note these Carnegie stages are only approximate day timings for average of embryos. Links: Carnegie Stage Comparison
Table References  
Human

O'Rahilly R. (1979). Early human development and the chief sources of information on staged human embryos. Eur. J. Obstet. Gynecol. Reprod. Biol. , 9, 273-80. PMID: 400868
Otis EM and Brent R. Equivalent ages in mouse and human embryos. (1954) Anat Rec. 120(1):33-63. PMID 13207763

Mouse
Theiler K. The House Mouse: Atlas of Mouse Development (1972, 1989) Springer-Verlag, NY. Online
OTIS EM & BRENT R. (1954). Equivalent ages in mouse and human embryos. Anat. Rec. , 120, 33-63. PMID: 13207763

Rat
Witschi E. Rat Development. In: Growth Including Reproduction and Morphological Development. (1962) Altman PL. and Dittmer DS. ed. Fed. Am. Soc. Exp. Biol., Washington DC, pp. 304-314.
Pérez-Cano FJ, Franch À, Castellote C & Castell M. (2012). The suckling rat as a model for immunonutrition studies in early life. Clin. Dev. Immunol. , 2012, 537310. PMID: 22899949 DOI.

Timeline Links: human timeline | mouse timeline | mouse detailed timeline | chicken timeline | rat timeline | Medaka | Category:Timeline



mouse

Events

  • tooth - molar m1 bell stage and m2 early bell stage (no central fissure), and m3 is visible.[1]
  • Hair Development - a tertiary wave of hair follicle placode induction takes place following the secondary (E16) and primary (E14) waves.[2]
  • Touch - nerve fibers have penetrated the epidermis.[3]

References

  1. Radlanski RJ, Renz H, Zimmermann CA, Mey R & Matalova E. (2015). Morphogenesis of the compartmentalizing bone around the molar primordia in the mouse mandible during dental developmental stages between lamina, bell-stage, and root formation (E13-P20). Ann. Anat. , 200, 1-14. PMID: 25723515 DOI.
  2. Duverger O & Morasso MI. (2009). Epidermal patterning and induction of different hair types during mouse embryonic development. Birth Defects Res. C Embryo Today , 87, 263-72. PMID: 19750518 DOI.
  3. Peters EM, Botchkarev VA, Müller-Röver S, Moll I, Rice FL & Paus R. (2002). Developmental timing of hair follicle and dorsal skin innervation in mice. J. Comp. Neurol. , 448, 28-52. PMID: 12012374 DOI.



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