Term
| What do u know about stomach? |
|
Definition
- it is situated in the left hypocondriac region.
- in the epigastric region.
- roughly J shaped.
- entirely covered by serosa.
- its function is to store food and make chyme. |
|
|
Term
| what are the general features about stomach? |
|
Definition
- has 2 surfaces; anterior and posterior.
- has 2 curvatures; greater and lesser.
- has 2 orifice; cardiac orifice and pyloric orifice.
- has 2 notch; cardiac notch and angular notch |
|
|
Term
| what are the parts of the stomach? |
|
Definition
the parts of the stomach are:
-the cardia
-the fundus
-the body
-the pyloric part, consisting of pyloric antrum and pyloric canal. |
|
|
Term
| what are the important relations of the stomach? |
|
Definition
anterior relation:
-abdominal wall, the diaphragm, the left lobe of the liver.
posterior relation: the omental bursa, spleen, left kidney, pancreas.
superior relation: the left dome of the diaphragm. |
|
|
Term
| what are the 3 general segments of the GIT? |
|
Definition
-foregut: lower 3rd of esophagus until 2nd part of duodenum.
-midgut: lower part of duodenum until distal mesocolon.
-hindgut: distal third of the transverse colon until the anal canal. |
|
|
Term
| what are the blood supplies of the GIT? |
|
Definition
foregut-celiac artery
midgut-superior mesentric artery
hindgut-inferior mesentric artery |
|
|
Term
| what are the blood supplies of the stomach and their origin? |
|
Definition
the left gastric artery: from the celiac artery
the right gastric artery: from the hepatic artery.
left gastro-omental artery: from spleenic artery
right gastro-omental artery: from gastroduoduodenal artery.
short gastric artery: spleenic artery |
|
|
Term
| what are the blood drainage of the stomach? |
|
Definition
left gastric vein: portal vein
right gastric vein:portal vein
right gastro-ormental vein: superior mesentric vein
left gastro-omental vein:spleenic vein
short gastric vein: spleenic vein |
|
|
Term
| what are the nerve supply for stomach? |
|
Definition
sympathetic nerve supply from T6 to T9 segments of spinal cord, to form the celiac plexus via splanchnic nerves.
parasympathetic nerve, form ant and post trunk of vagus nerve. |
|
|
Term
| narrate about the lymphatic drainage of the stomach. |
|
Definition
-the lymphatic drainage for both sufaces
-lymph nodes at the lesser and greater curvatures.
-lesser curvature's: gastric nodes.
-greater curvature's: gastr-omental nodes
-the both will drain into the celiac nodes. |
|
|
Term
| what are the components of large intestines? |
|
Definition
1. vermiform appendices + caecum
2. colon
3. rectum
4. anal canal. |
|
|
Term
|
Definition
-1.5 to 1.8 length.
-has 2 flexures: right (hepatic) flexures, left (spleenic) flexures. |
|
|
Term
| what are the differences of large intestine from small instestine? |
|
Definition
-larger diameter.
-hv 3 bands of taenia coli.
-has haustra
-appendices epiploicae. |
|
|
Term
| how many layers of LI? what are the layers? |
|
Definition
1. mucosa: simple columnar epithelium-form plicae circularis, LP-contain bv,glands,lymphatic tissue.
2. muscularis mucosa: IC, OL -both are free of pristaltic movement.
3. submucosa: dense irregular CT - hs bv, lymphatic vessels. meissner's plexus.
4. muscularis externa: IC-thicken form sphincter, OL-thicken form taenia coli.
5. adventitia/serosa: simple squamous epithelium-depends on presence of peritoneum. |
|
|
Term
| what are the branches of the SMA? |
|
Definition
1. inferior pancreaticoduodenal artery.
2. intestinal artery.
3. ileocolic artery.
4. right colic artery.
5. middle colic artery. |
|
|
Term
|
Definition
- the 1st part of large intestine.
-start at the ileocaecal junction.
-intraperitoneal
-no mesentry
-supply: ileocolic a.
-ileocaecal valve: opening of ileum into asc colon. |
|
|
Term
| describe the vermiform appendix. |
|
Definition
-6-7 cm
-blind-ended sacculation.
-arise from:posteromedial surface of caecum, 2-3 cm below ileocaecal orifice.
-base of appendix located: McBurney's point.
-supply: appendicular a. |
|
|
Term
|
Definition
1.asc
2.tranverse
3.desc
4.sigmoid |
|
|
Term
| describe ascending colon? |
|
Definition
-the relations:
anterior-greater omentum.
posterior-muscles of posterior abd wall.
lateral-right paracolic gutter.
-right colic flexure orientation: forward, to left.
-blood supply: ileocaecal a.(supply asc colon) and right colic a.(supply right colic flexure)
nerve: sympa-t10 till L@
para-vagus |
|
|
