digestive review

what are the functions of the following structures?

capillaries in the villi

deliver nutrients and oxygen to cells throughout the body

what are the functions of the following structures?

gallbladder

store & concentrate bile

what are the functions of the following structures?

lacteal

absorbs dietary lipids

what are the functions of the following structures?

villi

maximize nutrient absorption

what are the functions of the following structures?

rugae

allow it to expand and accommodate large amounts of food without tearing

what are the functions of the following structures?

pyloric sphincter

control amount of chyme into small intestine

what are the functions of the following structures?

lower esophageal sphincter

keeps chyme in the stomach

what are the functions of the following structures?

upper esophageal sphincter

controls bolus movement from pharynx to esophagus

what are the functions of the following structures?

hepatic portal vein

carries blood from organs in the abdomen to the liver

what are the functions of the following structures?

uvula

closes the nasopharynx during swallowing

what digestive processes occur in the mouth?

mechanical & chemical

list the parts of the small intestine in order of the passage of food

duedenum, jejunum, ileum

list the places the duodenum receives secretions from

stomach, pancreas, & gallbladder

in which area of the alimentary canal is there no digestion?

esophagus

name the layers of the alimentary canal along with their location & function

mucosa - inner lining of lumen, secretes mucus

submucosa - contains blood & hymphatic vessels

muscularis external - contains muscle

serosa - outermost layer