File:Stage 13 image 098.jpg: Difference between revisions
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[[Gastrointestinal Tract Development]] | [[Gastrointestinal Tract Development]] | ||
[[Category:Gastrointestinal]] | [[Category:Gastrointestinal Tract]] | ||
* Caudal pharynx (extending laterally, ventral to dorsal aorta - compare with [[:File:Stage 13 image 011.jpg|B4]]). | * Caudal pharynx (extending laterally, ventral to dorsal aorta - compare with [[:File:Stage 13 image 011.jpg|B4]]). |
Latest revision as of 18:07, 23 August 2010
G7L Image Features
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Cardiovascular System
Cardiovascular System Development
- Heart showing both ventricles (and ventricular septum) and a single atria in this section.
- Aortic sac lying ventral to the hypopharyngeal eminence.
- Ductus venosus large cavity within the liver.
- Truncus arteriosus above heart.
- Dorsal aorta with intersegmental artery branches lying ventral to developing vertebral column.
Endocrine System
- Rathke's pouch.
- Floor of pharynx with foramen caecum (remains of thyroglossal duct), and caudally to it, the hypopharyngeal eminence.
Gastrointestinal Development
Gastrointestinal Tract Development
- Caudal pharynx (extending laterally, ventral to dorsal aorta - compare with B4).
- Stomach and lesser sac in mesentery.
- Triangular flange of mesentery with triangular hole and intervitelline anastomosis.
- Hindgut (without lumen) seen at caudal end of mesentery.
Musculoskeletal System
Musculoskeletal System Development
Cervical region
- dark masses of dorsal root ganglia.
Lumbar region
- dorsal aorta with its dorsal segmental arterial branches.
- Between each dorsal segmental artery is a darker-staining mass of mesenchyme (the dark part of a sclerotome) which is the primordia of the intervertebral disc.
- The dorsal segmental artery itself marks the location of the centre of the light-staining part of the sclerotome, which is the future vertebral body.
- The dark band dorsal to the sclerotomes is the basal lamina of the wall of the neural tube.
Neural Development
Brain
- First identify the cerebral vesicles and flexures in this sagittal section.
- Identify the forebrain, midbrain and hindbrain.
- The roof of the hindbrain is thin (roofplate formed by a membrane only).
Spinal Cord
- Identify the dorsal root ganglia.
- At the lower end of the embryo the section passes through the spinal cord.
Renal System
- large mesonephros lying ventral to dorsal aorta.
Respiratory System
Respiratory System Development
- Trachea
- Left lungbud caudal to left atrium with attachment of pulmonary mesenchyme to septum transversum.
Original File name: PigG7L.jpg http://embryology.med.unsw.edu.au/wwwpig/pigg/G7L.htm
System Links: Introduction | Cardiovascular | Coelomic Cavity | Endocrine | Gastrointestinal Tract | Genital | Head | Immune | Integumentary | Musculoskeletal | Neural | Neural Crest | Placenta | Renal | Respiratory | Sensory | Birth |
About Stage 13 Embryo Sections - This image is from a serial section of a 6mm CRL pig embryo with some features of the Stage 14 embryo. This embryo is approximately equal to the day 42 human embryo. Use these serial images to identify internal features and relationships that exist within the embryo at this stage. Then compare these images with the later features of the Carnegie stage 22 human embryo.
Stage 13 Serial unlabeled images | Embryo Stage 13 Serial labeled images |
Cite this page: Hill, M.A. (2024, June 27) Embryology Stage 13 image 098.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Stage_13_image_098.jpg
- © Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G
File history
Yi efo/eka'e gwa ebo wo le nyangagi wuncin ye kamina wunga tinya nan
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current | 17:08, 10 August 2010 | 1,000 × 623 (144 KB) | S8600021 (talk | contribs) | ==Stage 13== ==Image Features== ===Gastrointestinal Development=== Stomach and lesser sac in mesentery. Triangular flange of mesentery with triangular hole and intervitelline anastomosis. Hindgut (without lumen) seen at caudal end of mesentery. ===Neur |
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- 2010 Lab 10
- 2010 Lab 5
- 2010 Lab 8
- 2010 Lecture 6
- 2011 Lab 5 - Early Embryo
- ANAT2341 Lab 3 - Week 4
- ANAT2341 Lab 5 - Early Embryo
- ANAT3411 Neuroanatomy
- BGDA Lecture - Development of the Nervous System
- BGDB Gastrointestinal - Early Embryo
- Carnegie stage 13
- Carnegie stage 13 - serial sections
- Embryo Serial Sections
- Fetal ECHO Meeting 2012
- Gastrointestinal Tract - Carnegie Stage 13
- Gastrointestinal Tract - Liver Development
- Lecture - Ectoderm Development
- Lecture - Neural Development
- Museum of Natural History Berlin - 2013 Seminar
- Neural - Mesencephalon Development
- Neural - Prosencephalon Development
- Neural - Rhombencephalon Development
- Neural 3D stage 13 Movie
- Placenta - Stage 13
- RPAH Cardiac Embryology 2014
- Renal System - Carnegie Stage 13
- Respiratory System - Carnegie Stage 13
- Talk:Carnegie stage 13 - serial sections
- Talk:Renal System - Carnegie Stage 13
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