Organs Detailed Flashcards
Stomach
storage via Rugae
food digested to chyme
physical breakdown by muscularis externa and HCl
pepsin for chemical breakdown (esp proteins)
Pyloric Sphincter
regulates movement of chyme from stomach to SI
Mucosa of Stomach
contains gastric pits that contain gastric glands
Mucous Surface Cells
Secrete mucus
Mucous Neck Cells
line upper walls (neck) of ducts
secrete mucus
Parietal Cells
secrete HCL and intrinsic factor
Chief Cells
secrete pepsinogen and gastric lipase
Enteroendocrine Cells
secrete hormones that diffuse into blood vessels
Gastrin- stims other glands to increase output
Left Gastric Artery
supplies esophagus and stomach
from Celiac Trunk
Splenic Artery
supplies pancreas, stomach, spleen, greater omentum
from Celiac Trunk
Common Hepatic Artery
splits into proper hepatic and gastroduodenal artery
Proper Hepatic Artery
Supplies gallbladder via cystic artery
Splits into R and L Hepatic
Gastroduodenal Artery
Supplies pancreas, stomach, greater omentum, duodenum
Drainage into Hepatic Portal Vein
Superior Mesenteric- from stomach, SI, LI Splenic- stomach, spleen, pancreas Inferior Mesenteric- LI, rectum L+R Gastric- stomach Cystic- gall bladder
Hepatic Portal Vein
delivers deoxygenated, nutrient rich blood to liver
Proper Hepatic Artery
delivers oxygenated blood to liver
Sinusoids of Liver
blood capillaries of liver
contain Kupffer’s cells- phagocytic
Bile
made in liver and stored in gallbladder
alkaline
consists of bile salts, pigments, phospholipids, cholesterol, ions
Bilirubin
primary bile pigment
if not broken down in intestine and reabsorbed- jaundice
Major Duodenal Papilla
contains opening of hepatopancreatic ampulla
Minor Duodenal Papilla
contains opening of accessory pancreatic duct
J vs I Arcades of Mesentery
J- 1-2
I- 3+
J vs I Vasa Recta of Mesentery
J- Long
I- Short
J vs I Circular Folds
J- large and many
I- few and small
Peyer’s Patches
Lymphatic nodules in the mucosa and submucosa of the ileum
Brunner’s Glands
secrete mucus
in submucosa of duodenum
Acini
exocrine cells of the pancreas
make digestive enzymes that go into GI Tract
Acini associated cells
make sodium bicarbonate that makes fluid alkaline
Hepatopancreatic Ampulla
combined duct of main pancreatic and common bile ducts
enters duodenum as major duodenal papilla
Accessory Pancreatic Duct
enters duodenum at minor duodenal papilla
Appendix
lots of lymphatic nodules
-in lamina propria of mucosa; some in submucosa
Superior Mesenteric Artery
branches from aorta
supplies pancreas head, distal duodenum, jejunum, ileum, cecum, appendix, ascending colon, proximal 2/3 of transverse colon
Inferior Pancreaticoduodenal Artery
from superior mesenteric a
supplies head of pancreas and distal duodenum
Middle Colic Artery
from superior mesenteric a
supplies proximal 2/3 of transverse colon
Right Colic Artery
from superior mesenteric a
supplies ascending colon and beginning of transverse colon
Ileocolic Artery
from superior mesenteric a
supplies terminal ileum, cecum, appendix, beginning of ascending colon
Intestinal (Jejunal and Ileal) Arteries
from superior mesenteric a
form arterial arcades that form straight arteries that supply intestinal wall
Inferior Mesenteric Artery
From Aorta
supplies distal 1/3 of transverse colon, sigmoid, rectum, upper half of anal canal
Left Colic Artery
from Inferior mesenteric a
supplies distal 1/3 of transverse colon and descending colon
Sigmoid Arteries
from Inferior mesenteric a
supplies sigmoid colon
Superior Rectal Artery
from Inferior mesenteric a
Supplies rectum and upper half of anal canal
