File:Stage14compare23.jpg

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Human Embryo comparison of embryo sizes between Stage 14 and Stage 23

Carnegie Stage 14 Facts: Week 5, 31 - 35 days, 5 - 7 mm

View: Lateral view. Amniotic membrane removed.

Features: midbrain, nasal placode, lens pit, 1,2,3 pharyngeal arches, fourth ventricle of brain, 1st pharyngeal groove, heart prominence, cervical sinus, upper limb bud, mesonephric ridge, lower limb bud, umbilical cord

Identify: midbrain region, nasal placode, lens pit, 1st, 2nd and 3rd pharyngeal arches, 1st pharyngeal groove, maxillary and mandibular components of 1st pharyngeal arch, fourth ventricle of brain, heart prominence, cervical sinus, upper limb bud, mesonephric ridge, lower limb bud, umbilical cord

Carnegie Stage 23 (day 56) Facts: Week 8, 56 - 60 days, 27 - 31 mm

View: Lateral view. Amniotic membrane removed.

Features: scalp vascular plexus, eylid, eye, nose, auricle of external ear, mouth, sholder, arm, elbow, wrist, toes separated, sole of foot, umbilical cord

Original Image Source: http://embryology.med.unsw.edu.au/wwwhuman/Stages/Images/stage14compare23.jpg

Image Source: UNSW Embryology Carnegie Stages

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	20:56, 13 May 2009		593 × 601 (32 KB)	MarkHill (talk \| contribs)	Human Embryo comparison of embryo sizes between Stage 14 and Stage 23 http://embryology.med.unsw.edu.au/wwwhuman/Stages/Images/stage14compare23.jpg Image source: UNSW Embryology © Dr Mark Hill, Image cannot be reproduced without permission.

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