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 ______

The portion of the foregut extending from oropharyngeal membrane to respiratory diverticulum gives rise to ________.

The forgut has ____ folding or ______-______ folding

anterior cephadal-caudal

The midgut is formed by ______ folding

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

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

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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