abdominal viscera Flashcards
what is the greater sac
main abdominal cavity
what is the lesser sac
omental bursa
diverticulum
what is intraperitoneal
- enclosed by visceral peritoneum
- suspended by mesenteries
what is in the greater omentum
gastrophrenic lig
gastrosplenic lig
gastrocolic lig
what is in the lesser omentum
hepatogastric lig
hepatoduodenal lig
what is the function of the abdominal viscera
primarily digestive
spleen, kidney, adrenal glands
what is in the lower thoracic cage
stomach
liver
spleeen
what does the esophagus do
- transports food to stomach
- helps warm/cool food
- can expand significantly
- thick muscular walls produce strong peristaltic waves
- muscular walls transition from skeletal to smooth muscle
what is the composition of the esophagus
-muscular coat; longitudinal and circular
upper 1/3 skeletal
middle 1/3 smooth and skeletal
lower 1/3 smooth
what is the innveration of the espohagus
R and L vagus nn
- upper= recurrent laryngeal
- below lung roots= esophageal plexus
what does the stomach do
- stores food
- HCI disinfects the food and denatures protein
- HCI activates protease pepsin
- produces chyme that is released in peristaltic spurts into the duodenum
what does the small intensine do
- enzymatic digestion of food
- abroption of nutrients
what are the parts of the small intenstine
duodenum
jejunum
ileum
what does the liver do
- receives blood from digestive system
- detoxifies and removes debris
- stores glucose in form of glycogen
- produces plasma proteins
- exxhanges metabolities with blood
- produces bile
what does the gallbladder do
- stores and concentrates bile produced by liver
- releases bile in response to chyme entering duodenum
- bile emulsifies fats and enhances their digestion and absorption
- consists of bilirubin, cholesteral, water and ions
