Flashcards in embryology of the gastrointestinal system pages 242 to 250 Deck (38):
How is the primitive gut tube divided in regions ?
The foregut receives blood from which artery ?
The celiac artery
The hindgut receives artery from the superior mesenteric artery
TRUE OR FALSE
The hind gut receives blood from the inferior mesenteric artery
The midgut receives blood from which artery ?
From the superior mesenteric artery
The epithelia lining the gut tube is derived from which germinative layer ?
The foregut parasympathetic innervation comes from ?
The parasympathetic innervation of the midgut comes from ?
The parasympathetic innervation of the hindgut comes from ?
The pelvic splanchnic nerves
Sympathetic innervation of the foregut distribution ?
Preganglionics : T. splanchnic nerves T5-T9
Postganglionic: celiac ganglion
Sympathetic innervation of the midgut distribution?
Preganglionics: thoracic splanchnic nerves T9-T12
Postganglionic: Superior mesenteric ganglion
Hinfgut sympathetic innervation ?
Preganglionics: Lumbar splanchnic nerves L1-L2
Postganglionics: Inferior mesenteric ganglion
1st and 2nd duodenum
ARE DERIVED FROM WHICH PART OF THE GUT TUBE
3rd part of duodenum
2/3 transverse colon
Hindgut derivatives are ?
3/3 transverse colon
Which organs are derived from endodermal outgrowths of the gut tube?
Lower respiratory tract
Rotation of the foregut is in which direction ?
90 degrees clockwise in the long axis of the tube
What structures arise from the remnants of the ventral mesentery in the liver ?
visceral peritoneum of the liver
Pancreas formation takes place from ?
An ventral and a dorsal buds of endoderm evaginations, in which the ventral bud will rotate and fuse with the dorsal bud
The Spleen formation takes place in which mesentery ?
The spleen is derived from which germinative layer ?
Pancreas dorsal bud appears in which mesentery ?
During foregut rotation which structures rotate to the right ?
During the foregut rotation which structures rotate to the left ?
The remnants of the dorsal mesentery will contribute to which structures ?
Spleno renal ligament
Retroperitoneal organs are called those which ?
Are covered partially by the parietal peritoneum
Peritoneal organs are called to those which are ?
Covered great part by parietal and visceral peritoneum , suspended by a mesentery and are mobile
The parietal layer somatic innervation is given by ?
Low intercostal nerves, iliohypogastric and ilioinguinal nerves of the lumbar plexus
Postnatal remnants of mesenteries are ?
why the peritoneal cavity and when is divided into two ?
When the foregut rotates the lesser omentum rotates to the right dividing the cavity in two
the lesser sac
the greater sac
The omental bursa is also called ?
The greater sac is located in relationship with the stomach ?
If the posterior wall of the stomach is perforated which space will be receving it content ?
The lesser omentum
The major peritoneal organs are ?
First portion of the duodenum
Tail of the pancreas
SAD PUCKER is a mnemonic used to remember retroperitoneal organs which are ?
And the numbers 112 212 111 to describe primary or secondary
1 S suprarenal glands
1 A Aorta/IVC
2 D duodenum (2-3 portions)
2 P Pancreas (head, neck,body)
1 U ureters
2 C colon (ascending, descending)
2 K kidneys
2 E esophagus
2 R rectum
Limits of the epiploic foramen ?
anterior: Hepatoduodenal ligament
Superior: caudate lobe of the liver
Why the hepatoduodenal ligament is important ?
Common bile duct
Midgut rotation starts ?
6th 10 week