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Exam 7 GI Embryology B - BABLER
Exam 7 GI Embryology B - BABLER
Terms in this set (27)
What are the 5 derivatives of the foregut?
3. Duodenum, proximal to the opening of the (common) bile duct 4. Liver, Biliary apparatus (gallbladder and bile duct system) 5. Pancreas
During the ___ and __ weeks the stomach appears as a ______ shaped dilatation of the foregut.
4th and 5th spindle
As the stomach continues to grow it will start to change position and will rotate around the _____ and _______ axis
longitudinal and anteroposterior axis
The foregut is suspended _______ by the _______ and is attached to the ______ wall by the ______.
2. Dorsal mesentary (dorsal mesogastrium
3. Anterior wall
4. Ventral mesogastrium
The mesentaries are _____ layer of peritoneum that encloses ______, ____, and _______ that supply these _______.
Organs enlcosed by mesentary are _________
intraperitoneal (liver, spleen, stomach, and pancreas at first
List the intraperitoneal organs
liver spleen stomach pancreas
What is intraperitoneal?
Organs enclosed by mesentary
Organs that lie against the posterior body wall and are covered by peritoneum on their ANTERIOR surface only are _______
retroperitoneal (kidneys, and later the pancreas (secondarily retroperitoneal))
What is retroperitoneal?
Organs that lie against the posterior body wall and are covered by peritoneum on anterior surface only (kidneys, and pancreas (2ndary retroperitoneal)
What organs are considered retroperitoneal?
Kidney and pancreas (secondary)
The ventral mesogastrium forms the ______ and _______
lesser omentum (stomach and upper duedenum to liver) falciform ligament (liver to ventral body)
The free ____ of the ______ connecting the duodenum and liver (hepatoduodenal ligament) contains the _____
Free margin lesser omentum Portal triad (bile duct, portal vein, and hepatic artery)
What is pyloric stenosis?
Hypertrophy of the circular, and to a lesser degree the longitudinal, musculature of the stomach in the region of the pylorus Common abnormality in infants (often males) Narrowing of the pyloric lumen, resulting in severe vomiting
Hypertrophy of circular, and to lesser degree longitudinal, musculatrue of stomic and is common abnormality in infants.
the duodenum is the terminal part of the _____ and the cephalic part of the ______
After the rotation of duodenum the head of the ______ becomes retroperitoneal.
The duodenum is supplied by ______ and ____
Celiac artery (forgut) superior mesenteric (midgut)
During the _____ month, cell proliferation obliterates lumen of duodenum which is later recanalized. If recanalization is incomplete/absent then _____ or ___ occurs which results in ______
duodenal stenosis duodenal atresia Results in gastric distention and vomiting
Liver primordium appears in the middle of the ____ week as an outgrowth of endodermal epithlium at distal end of foregut, the ________
3rd week hepatic diverticulum
The septum transversum ultimately forms the ________
In the ___ week liver constitutes ____% of weight of developing fetus
___ week, bile is produced by hepatic cells
The liver is the main site of hematopoises (blood cell formation) and continue on until _______ After birth hematopoiesis occurs ________
last 2 months of gestation Bone Marrow
The pancreas is formed by ____ buds originating from endodermal epithelium of the ______ The _____ bud located in the _____ mesentary The ____ bud close to the ____
2 duodenum Dorsal pancreatic bud located in dorsal mesentary Ventral pancreatic bud close to bile duct
The pancreas is formed by _____ fusing
2 pancreatic buds fusing
The ventral pancreatic bud forms the ________
Head of the pancreas
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