Template:Carnegie stage table: Difference between revisions
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fertilized oocyte, pronuclei | fertilized oocyte, pronuclei | ||
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<center>'''2'''</center> | <center>'''2'''</center> | ||
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loss of zona pellucida, free blastocyst | loss of zona pellucida, free blastocyst | ||
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<center>'''4'''</center> | <center>'''4'''</center> | ||
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implantation | implantation | ||
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<center>'''6'''</center> | <center>'''6'''</center> | ||
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gastrulation, notochordal process | gastrulation, notochordal process | ||
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<center>'''8'''</center> | <center>'''8'''</center> | ||
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'''Somite Number 1 - 3''' neural folds, cardiac primordium, head fold | '''Somite Number 1 - 3''' neural folds, cardiac primordium, head fold | ||
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<center>'''10'''</center> | <center>'''10'''</center> | ||
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'''Somite Number 13 - 20''' rostral neuropore closes | '''Somite Number 13 - 20''' rostral neuropore closes | ||
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<center>'''12'''</center> | <center>'''12'''</center> | ||
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<center> [[Carnegie_stage_13_-_serial_sections|Stage 13/14 shown in serial embryo sections]] series of Embryology Program</center> | <center> [[Carnegie_stage_13_-_serial_sections|Stage 13/14 shown in serial embryo sections]] series of Embryology Program</center> | ||
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<center>'''14'''</center> | <center>'''14'''</center> | ||
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lens vesicle, nasal pit, hand plate | lens vesicle, nasal pit, hand plate | ||
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<center>'''16'''</center> | <center>'''16'''</center> | ||
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finger rays | finger rays | ||
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<center>'''18'''</center> | <center>'''18'''</center> | ||
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straightening of trunk | straightening of trunk | ||
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<center>'''20'''</center> | <center>'''20'''</center> | ||
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| colspan="5" width="376" | | | colspan="5" width="376" | | ||
<center> [[Carnegie_stage_22_-_serial_sections|Stage 22 shown in serial embryo sections series]] of Embryology Program</center> | <center> [[Carnegie_stage_22_-_serial_sections|Stage 22 shown in serial embryo sections series]] of Embryology Program</center> | ||
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<center>'''22'''</center> | <center>'''22'''</center> |
Revision as of 05:34, 13 April 2011
Carnegie Stage Table
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(not to scale) |
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fertilized oocyte, pronuclei |
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cell division with reduction in cytoplasmic volume, formation of inner and outer cell mass |
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loss of zona pellucida, free blastocyst |
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attaching blastocyst | |
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(week 2) |
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implantation | |
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extraembryonic mesoderm, primitive streak | |
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gastrulation, notochordal process |
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primitive pit, notochordal canal |
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Somite Number 1 - 3 neural folds, cardiac primordium, head fold |
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Somite Number 4 - 12 neural fold fuses |
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Somite Number 13 - 20 rostral neuropore closes |
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Somite Number 21 - 29 caudal neuropore closes |
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Somite Number 30 leg buds, lens placode, pharyngeal arches |
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lens pit, optic cup |
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lens vesicle, nasal pit, hand plate |
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nasal pits moved ventrally, auricular hillocks, foot plate |
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finger rays |
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ossification commences |
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straightening of trunk |
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upper limbs longer and bent at elbow |
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hands and feet turned inward |
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eyelids, external ears |
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rounded head, body and limbs |
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