Template:Carnegie stage table: Difference between revisions
From Embryology
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| width="101" |<center> 4 - 6</center> | | width="101" |<center> 4 - 6</center> | ||
| width="100" bgcolor="#000000" |<center>[[File:Stage13 bf2c.jpg|60px|link=Carnegie_stage_13]]</center> | | width="100" bgcolor="#000000" |<center>[[File:Stage13 bf2c.jpg|60px|link=Carnegie_stage_13]]</center> | ||
| width="400" |'''Somite Number 30''' leg buds, lens placode, pharyngeal arches | | width="400" |'''Somite Number 30''' [[Musculoskeletal_System_-_Limb_Development|leg buds]], lens placode, pharyngeal arches | ||
|- bgcolor="#CCFFCC" | |- bgcolor="#CCFFCC" | ||
| colspan="5" width="376" height="18" |<center> [[Carnegie_stage_13_-_serial_sections|Stage 13/14 shown in serial embryo sections]] series of Embryology Program</center> | | colspan="5" width="376" height="18" |<center> [[Carnegie_stage_13_-_serial_sections|Stage 13/14 shown in serial embryo sections]] series of Embryology Program</center> | ||
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| width="101" |<center> 7 - 9</center> | | width="101" |<center> 7 - 9</center> | ||
| width="100" bgcolor="#000000" |<center>[[File:Stage15 bf1c.jpg|60px|link=Carnegie_stage_15]]</center> | | width="100" bgcolor="#000000" |<center>[[File:Stage15 bf1c.jpg|60px|link=Carnegie_stage_15]]</center> | ||
| width="400" |lens vesicle, nasal pit, hand plate | | width="400" |lens vesicle, nasal pit, [[Musculoskeletal_System_-_Limb_Development|hand plate]] | ||
|-bgcolor="F5FAFF" | |-bgcolor="F5FAFF" | ||
| width="40" |<center>[[Carnegie_stage_16|'''16''']]</center> | | width="40" |<center>[[Carnegie_stage_16|'''16''']]</center> | ||
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| width="101" |<center> 18 - 22</center> | | width="101" |<center> 18 - 22</center> | ||
| width="100" bgcolor="#000000" |<center>[[File:Stage20 bf1c.jpg|60px|link=Carnegie_stage_20]]</center> | | width="100" bgcolor="#000000" |<center>[[File:Stage20 bf1c.jpg|60px|link=Carnegie_stage_20]]</center> | ||
| width="400" |upper limbs longer and bent at elbow | | width="400" |[[Musculoskeletal_System_-_Limb_Development|upper limbs]] longer and bent at elbow | ||
|- | |- | ||
| width="40" |<center>[[Carnegie_stage_21|'''21''']]</center> | | width="40" |<center>[[Carnegie_stage_21|'''21''']]</center> | ||
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| width="101" |<center>27 - 31</center> | | width="101" |<center>27 - 31</center> | ||
| width="100" bgcolor="#000000" |<center>[[File:Stage23 bf1c.jpg|60px|link=Carnegie_stage_23]]</center> | | width="100" bgcolor="#000000" |<center>[[File:Stage23 bf1c.jpg|60px|link=Carnegie_stage_23]]</center> | ||
| width="400" |rounded head, body and limbs | | width="400" |rounded head, body and [[Musculoskeletal_System_-_Limb_Development|limbs]] | ||
|-bgcolor="F5FAFF" | |-bgcolor="F5FAFF" | ||
| colspan="5" width="376" |<center>Following this stage [[Fetal Development]] occurs until birth (approx 37 weeks)</center> | | colspan="5" width="376" |<center>Following this stage [[Fetal Development]] occurs until birth (approx 37 weeks)</center> |
Revision as of 07:08, 14 March 2014
Carnegie Stage Table
Weeks shown in the table below are embryonic post ovulation age, for clinical Gestational Age (GA) measured from last menstrual period, add 2 weeks.
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fertilized oocyte, zygote, pronuclei | |||
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morula cell division with reduction in cytoplasmic volume, blastocyst formation of inner and outer cell mass | |||
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loss of zona pellucida, free blastocyst | |||
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attaching blastocyst | |||
(week 2) |
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implantation | ||
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extraembryonic mesoderm, primitive streak, gastrulation | |||
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gastrulation, notochordal process | |||
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primitive pit, notochordal canal | |||
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Somitogenesis 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 | |||
The embryos shown in the table are from the Kyoto and Carnegie collection and other sources.