G.A. Digestive system Flashcards
what initiates the digestive process?
mouth (oral cavity) and pharynx
where is 60-70% of saliva produced?
submandibular gland
where is 20-30 % of saliva produced?
parotid gland
what do mesenteries do? characteristic?
transmits vessels, nerves & lymph tissue
double folded peritoneum
where is the falciform ligament?
left lobe of the liver to the diaphragm
contains: the periumbilical V., ligamentum teres hepatis
where is the coronary ligament?
right lobe of liver to diaphragm
where is the ligamentum venosum?
lies in liver tissue (remnant of ductus venosum)
where is the lesser omentum?
extends from liver to the lesser curvature of stomach
where is the greater omentum?
extends from greater curve over the abdominal viscera
what are the structures of the stomach?
cardia, fundus, body & pylorus
what are rugae in the stomach?
mucous lining with many folds
what do parietal cells secrete?
HCL & IF
what do chief cells secrete?
pepsinogen
what does grehlin stimulate?
hunger
what structures make up SI?
duodenum (10 in.)
Jejunum (8 ft.)
ileum (12 ft.)
what does the brush border do in SI?
INCREASES SURFACE AREA FOR ABSORPTION
WHAT ARE PLICAE CIRCULARE?
FOLDS IN THE SI
what type of cells make up CCK?
epithelial cells
what structures make up the LI?
Cecum- blind pouch
Appendix- hollow
Colon
Rectum & anus
what are the parts of the colon?
ascending
transvers
descending
sigmoid
where/what are the columns of morgagni?
in rectum & anus
needed for expansion
what is the largest visceral organ & gland in the entire body?
liver
which ligament contains the round ligament
falciform lig.
how many lobes make up the liver?
4
Right lobe- Ant. & post.
Left lobe- divided into caudate & quadrate lobes (med. & lat.)
what does the liver produce?
bile (RBC in the fetus)
what is the livers function?
filter & detoxifies blood
protein synthesis
stores- glycogen, vitamins, iron & copper
what is the gallbladders function?
contracts to expel bile
how is bile secreted?
stimulated by CCK
what is biles function?
emulsify fat
what is going to be retroperitoneal?
Duodenum ascending Colon ureters pancreas suprarenals descending colon aorta kidneys rectum IVC "D CUPS DAKRI"
where is the gallbladder located?
between left & caudate lobes of liver
