lab 7 part 2 Flashcards
liver
-functions
- bile production
- metabolic regulation
- blood processing
liver
-located where
in the upper right quadrant or the right hypochondriac and epigastric regions
falciform ligament
divides the liver into the right and left
2 smaller lobes
quadrate and the caudate
lobes of the liver
- number
- definition
4
-composed of functional units called lobules
lobules
- shape
- how are they separated from each other
- at each point it contains
- consists of
- hexagonal
- by a thin septum
- hepatic triad or portal area
- hepatocytes
hepatic triad or portal area contains
-branches of the hepatic artery, hepatic portal vein and bile duct
hepatocytes
radiate outward from a central vein
sinusoids
channels for blood flow in liver that separate hepatocytes
blood flow in liver lobule
blood flows from the branches of the hepatic portal vein and the hepatic artery in the hepatic triad enters sinusoids
kupffer cells
- type of cells
- function
- phagocytic cells
- line sinusoids and remove debris and foreign material as the blood passes by
bile
- produced by
- secreted into
- hepatocytes
- narrow channels called bile canaliculi
right and left hepatic ducts form
common hepatic duct
how is common bile duct formed
common hepatic duct and cystic duct
how is pancreatic ampulla formed
by common bile duct and pancreatic duct
bile will enter duodenum though
the pancreatic ampulla
hepatopancreatic sphincter
controls bile released into the duodenum
does blood flow into or out of liver lobule
in and bile out
flow of bile
right and left hepatic duct -> common hepatic duct -> cystic duct -> gallbladder -> common bile duct -> ampulla -> duodenum
gallbladder
-function
store and concentrate bile
small intestine
-3 subdivisions
- duodenum
- jejunum
- ileum
ileum
connects to the large intestine at the ileocecal valve
plicae circulares
permanent folds of mucous
lamina propria
- location
- contains
- inside each villus
- contains a blood capillary and lymphatic vessel called a lacteal to absorbed digested nutrients
intestinal glands
- aka
- function
- location
- crypts of Lieberkuhn
- produce new epithelial cells and brush border enzymes
brush border enzymes
assist in the final stages of chemical digestion
submucosal glands
- aka
- location
- function
- Brunner’s glands
- in submucosa of duodenum
- secrete an alkaline mucous to protect the mucosa from the acidic chyme of the stomach
lymphoids nodules of the sm intestine
- location
- function
- ileum
- protect the mall intestine from bacteria inhabiting the nearby large intestine
large intestine
- length
- 3 functions
- 3 subdivisions
- 5ft
- absorbs water and several vitamins produced by bacteria of the colon
- forms and stores feces
- eliminates feces from body
- absorbs water and several vitamins produced by bacteria of the colon
- cecum, colon and rectum
ileocecal sphincter
guards entrance to LI
cecum
- definition
- what attaches to it
blind pouch that hangs below the ileocecal valve
-vermiform appendix
colon
-4 sections
- ascending
- transverse
- descending
- sigmoid
colon contains
haustra
haustra
- definition
- function
- how are pouches created
- series of pouches
- permit the colon to distend
- the contraction of the longitudinal muscles called the taeniae coli
rugae
- definition
- function
- ridges in stomach mucosa
- helps stomach stretch
spleen
filters blood and removes damaged RBC
