Template:Carnegie stage table: Difference between revisions
From Embryology
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| width="101" |<center> 1.5 - 2.5</center> | | width="101" |<center> 1.5 - 2.5</center> | ||
| width="100" bgcolor="#000000" |<center>[[File:Stage9_dorsal.jpg|60px|Link=Carnegie_stage_9]]</center> | | width="100" bgcolor="#000000" |<center>[[File:Stage9_dorsal.jpg|60px|Link=Carnegie_stage_9]]</center> | ||
| width="400" |'''Somite Number 1 - 3''' neural folds, cardiac primordium, head fold | | width="400" |[[Somitogenesis]] '''Somite Number 1 - 3''' neural folds, cardiac primordium, head fold | ||
|-bgcolor="F5FAFF" | |-bgcolor="F5FAFF" | ||
| width="40" |<center>[[Carnegie_stage_10|'''10''']]</center> | | width="40" |<center>[[Carnegie_stage_10|'''10''']]</center> |
Revision as of 14:30, 7 June 2011
Carnegie Stage Table
(not to scale) |
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fertilized oocyte, zygote, pronuclei | ||||
morula cell division with reduction in cytoplasmic volume, blastocyst formation of inner and outer cell mass | ||||
loss of zona pellucida, free blastocyst | ||||
attaching blastocyst | ||||
(week 2) |
implantation | |||
extraembryonic mesoderm, primitive streak, gastrulation | ||||
gastrulation, notochordal process | ||||
primitive pit, notochordal canal | ||||
Somitogenesis Somite Number 1 - 3 neural folds, cardiac primordium, head fold | ||||
Somite Number 4 - 12 neural fold fuses | ||||
Somite Number 13 - 20 rostral neuropore closes | ||||
Somite Number 21 - 29 caudal neuropore closes | ||||
Somite Number 30 leg buds, lens placode, pharyngeal arches | ||||
lens pit, optic cup | ||||
lens vesicle, nasal pit, hand plate | ||||
nasal pits moved ventrally, auricular hillocks, foot plate | ||||
finger rays | ||||
ossification commences | ||||
straightening of trunk | ||||
upper limbs longer and bent at elbow | ||||
hands and feet turned inward | ||||
eyelids, external ears | ||||
rounded head, body and limbs | ||||