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12 Cards in this Set
- Front
- Back
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Midgut:
Gives rise to GI tract from ... (distal to opening of bile duct) to proximal 2/3 of ...; supplied by branches of ...; receive sympathetic innervation from ...; receive parasympathetic innervation from ... nerve |
duodenum
transverse colon superior mesenteric artery (SMA) superior mesenteric ganglion vagus |
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hindgut:
gives rise to GI tract from distal 1/3 of ... to upper part of ... supplied by branches of ... receive sympathetic innervation from ... receive parasympathetic innervation from ... nerves (S2,3,4) |
transverse colon
anal canal inferior mesenteric a. (IMA) inferior mesenteric ganglion pelvic splanchnic |
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The small intestine consists of what 3 parts?
-... (first 10 inches) -... (next 8 feet) -... (last 12 feet) |
duodenum
jejunum ileum |
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Jejunum and Ileum:
more mobile than duodenum (which is held by mesentary) jejunum begins at ... flexure and ileum ends at ... junction together measure about 6m (proximal #/# --> jejunum, distal #/# --> ileum) no sharp ... between them coils of jejunum --> occupy ... part of abdominal cavity coils of ileum --> occupy ... part of abdominal cavity and some extend into pelvis |
duodenojejunal
ileocecal 2/5 3/5 boundary upper left lower right |
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Functions of all parts of small intestine are simple;
... of nutrients ... of nutrients |
Digestion
Absorption |
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(small intestine)
Special structures inside the small gut are: ...: large circular folds. Largest in Jejunum, small in ileum. ...: microscopic, finger like projections. Longest in Jejunum, smaller in ileum. ...: collections of B-cell and T-cell lymphocytes to protect against bacteria. Commonly seen in ileum, only occasionally seen in jejunum. |
Plicae circulares
Villi Peyer’s patches |
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What artery supplies the midgut?
Jejunum Ileum Cecum & Appendix Ascending colon Proximal 2/3 of transverse colon |
superior mesenteric artery
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Jejunum:
... arcades (arches of anastomosing arteries) ... vasa recta ... plicae circulares |
Few
Long Tall |
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Ileum:
... arcades ... vasa recta ..., shallow plicae circulares ..., becoming more abundant distally |
More
Shorter few Peyer’s patches |
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what is this?
-It occurs in 2 to 4% of people (more common in males) -sometimes vitelline duct persists -it represents a remnant of proximal part of vitelline duct (yolk stalk) -it typically appears as a finger-like pouch, 3 to 6 cm long, that arises from antimesenteric border of ileum, 40 to 50 cm from ileocecal junction -it may be connected to umbilicus by fibrous cord (26%) -its wall contains all layers of ileum and may contain small patches of gastric and pancreatic tissues -It may become inflamed and cause symptoms that mimic appendicitis |
Ileal (Meckel's) Diverticulum
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Large intestine:
arches around and encloses coils of ... and ... functions -store ... for disposal -absorption of ... and ... |
jejunum
ilium feces water electrolytes |
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which artery is this?
Supplies hindgut -Last 1/3 of transverse colon -Descending colon -Sigmoid Colon -Part of blood supply to rectum |
inferior mesenteric artery
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