Chapter 26: Digestive System Flashcards
4 digestive processes
propulsion, digestion, absorption, elimination
the digestive system is about ___ ft
30
hardest substance in the body (made with calcium phosphate)
enamel
contains pulp, which consists of nerves, blood vessels, & soft connective tissue
pulp cavity
teeth total in young children
20
teeth total in adults
32
where are taste buds located?
papillae
G.E.R.D
gastroesophageal reflux disease
double layered membrane that support & stabilize the abdominal organs, hold fat & provide route for blood vessels
mesenteries
large, superficial mesentery that hangs over many abdominal organs like an apron
greater omentum
inside curve of the stomach
lesser curvature
outside curve of the stomach
greater curvature
4 regions of the stomach
cardia, fundus, body, pylorus
2 muscular valves that control entry to/exit from stomach
lower esophageal sphincter, pyloric sphincter
secretions mix together with food to make a soupy mixture called ___
chyme
secrete mucus that protects mucosa from acidic environment in the stomach
surface mucus cells
secrete hydrochloric acid & intrinsic factor
parietal cells
secretes pepsinogen
chief cells
secrete gastrin, somatostatin, histamine, etc
enteroendocrine cells
what part of the small intestine has plicae, circular folds
duodenum & jejunum
3 sections of small intestine
duodenum, jejunum, ileum
what part of the small intestine contains villi
jejunum
4 sections of large intestine
cecum, colon, rectum, anal canal
4 sections of colon
ascending, transverse, descending, sigmoid
