File:Stage11 sem6.jpg: Difference between revisions

Revision as of 14:03, 5 May 2011

Human Embryo Carnegie stage 11

This scanning EM of the stage 11 human embryo is the same image as Stage11 sem5 with the addition of direction of view.

There are some alternative terminologies:

ventral and anterior both mean toward the front of the body.
dorsal and posterior mean the back of the body.
rostral, cranial, and cephalic and superior all mean toward the head or the upper part of a structure
proximal means closer to the trunk
distal is away from the trunk
medial describes a structure toward the midline of the body
lateral describes a structure away from the midline of the body

Carnegie stage 11 24 days, 13 somite pairs

Facts: Week 4, 23 - 26 days, 2.5 - 4.5 mm, Somite Number 13 - 20

View: This is a scanning EM of the embryo dorsal view showing the neural tube closing with open neuropores and the paired somites visible through the thin ectoderm.

Features: surface ectoderm, neural tube, cranial (anterior) neuropore, caudal (posterior) neuropore, somites, heart, cut edge of amnion

Stage11_sem6.jpg

Original file name: Stage11day24somite13-dorsal-sem5-1000px.jpg

Human Embryo (stage 11)
dorsolateral whole embryo
dorsal embryo
lateral embryo
lateral head
lateral head with overlay
embryo cross-section
embryo cross-section label
neural cross-section label
ventrolateral head
ventrolateral head with overlay
ventral head
buccopharyngeal membrane
neural crest
posterior neuropore
anterior neuropore

Image Source: Scanning electron micrographs of the Carnegie stages of the early human embryos are reproduced with the permission of Prof Kathy Sulik, from embryos collected by Dr. Vekemans and Tania Attié-Bitach. Images are for educational purposes only and cannot be reproduced electronically or in writing without permission.

Embryonic Development

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	14:13, 5 May 2011		612 × 1,000 (57 KB)	S8600021 (talk \| contribs)
	13:49, 5 May 2011		612 × 1,000 (57 KB)	S8600021 (talk \| contribs)	==Human Embryo Carnegie stage 11== This scanning EM of the stage 11 human embryo is the same image as Stage11 sem5 with the addition of Carnegie stage 11 24 days, 13 somite pairs Facts: Week 4, 23 - 26 days, 2.5 - 4.5 mm, So

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 ==Human Embryo Carnegie stage 11==
-This scanning EM of the stage 11 human embryo is the same image as [[:File:Stage11 sem5.jpg|Stage11 sem5]] with the addition of
+This scanning EM of the stage 11 human embryo is the same image as [[:File:Stage11 sem5.jpg|Stage11 sem5]] with the addition of direction of view.
+There are some alternative terminologies:
+* '''ventral''' and '''anterior''' both mean toward the front of the body.
+* '''dorsal''' and '''posterior''' mean the back of the body.
+* '''rostral''',  '''cranial''', and '''cephalic''' and '''superior''' all mean toward the head or the upper part of a structure
+* proximal means closer to the trunk
+* distal is away from the trunk
+* medial describes a structure toward the midline of the body
+* lateral describes a structure away from the midline of the body
 Carnegie stage 11 24 days, 13 somite pairs