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Exam 7 GI Embryology A - BABLER

Terms in this set (22)

During 4th week a portion of the YOLK SAC CAVITY forms the ___________. the cavity is lined with ________ and extends from the__________ to the ________ membranes.
1. Primitive Gut
2. Endoderm
3. Oropharyngeal
4. Cloacal membranes (distal portion of the tube)
Endoderm lines the ______ and is the epithelial lining that gives rise to the ______ of glands/organs, such as ____ and _____ ______ will develop into muscle, connective tissue, and peritoneal components of the gut.
1. Gut
2. Parenchyma
3. Liver
4. Pancreas
5. Splanchnic
Splanchnic mesoderm will develop into _____, ______, and _____ components of the gut wall.
1. Muscle
2. Connective Tissue
3. Peritoneal components
Lateral plate mesoderm gives rise to _______ surrounding the gut.
Splanchnic mesoderm
_________ gives rise to splanchnic mesderm surrounding the gut.
Lateral plate mesoderm
Name the 3 parts of the gut
Foregut Midgut Hindgut
Give the location/description of the foregut
Most cranial or Cephalad portion of blind-ending tube Runs from oropharyngeal membrane to a portion that gives rise to the liver
The foregut runs from ______ to ________
Oropharyngeal membrane (future mouth) to portion that gives rise to liver
Give location/description of midgut
Central portion of the gut and Initially attached to yolk sac
The midgut is initially attached to the ______
Yolk sac
The portion of the foregut extending from oropharyngeal membrane to respiratory diverticulum gives rise to ________.
Pharynx
The forgut has ____ folding or ______-______ folding
anterior cephadal-caudal
The midgut is formed by ______ folding
lateral
The midgut remains temporally connected to the yolk sac by means of the ______ or ______
Vitelline duct or Yolk stalk
Development of the midgut is characterized by ____ elongation of the gut and its mesentary
rapid
the midgut gives rise to the ________ which forms most of the ________.
Primary intestinal loop digestive tract
The hindgut extends from the _____ of the ______ to the ______ membrane
Left 1/3 Transverse colon Cloacal membrane
Portions of the _____ and it serivativs are suspended from the dorsal and ventral body wall by ______.
gut tub mesentaries
blood supply of the forgut
Celiac Artery
bloody supply of the midgut
superior mesentaric artery
blood supply of the hindgut
inferior mesentaric artery
What are the 3 unpaired branches of the aorta and what do they supply?
1. Celiac Artery - Foregut 2. Superior Mesentaric - Midgut 3. Inferior mesentaric - Hindgut
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