Ch 25 Lec 1 - Digestive System Flashcards
production of ATP by body process
metabolism
process whereby food is changed into a form that can be absorbed
digestion
digestive tract is aka the blank and includes the mouth, pharynx, esophagus, stomach, intestines, rectum, anus
alimentary canal
food enters via mouth
ingestio
squashing, tearing, crushin, mixing, churning of food
mechanical processing
chemical and enzymatic breakdown
digestion
four layers of digestive tract
mucosa, submucosa, muscularis, serosa
inner most layer of digestive system with three layers
mucosa
three layers of mucosa
mucosal epithelium, lamina propria, muscularis mucosa
layer of mucosa that has blood vessels, sensory nerves, lymph vessels, and MALT
lamina propria
may have folds to increase surface area and may have glands layer of digestive system
mucosa
layer of digestive system including loose connective tissue, glands, blood vessels, lymph vessels, and nerves
submucosa
layer of digestive system with layers of visceral smooth muscle
muscularis
two layers of muscularis
inner (circular), outer (longitudinal)
serosa is aka blank
visceral peritoneum
serosa does not exist superior to diaphragm and there is blank instead
adventitia
serosa has blank and blank tissue
connective, epithelium
this propels bolus down the digestive tract
peristalsis
in peristalsis, blank muscles contract first which prevents bolus from moving back
circular muscles
no net movement in any particular direction and goal is to fragment bolus in this motor functino
segmentation
there is mostly blank muscle contractions in segmentation
circular
a series of membranes in the abdominal cavity
peritoneum
membrane of abdominal cavity that adheres directly to the internal organs
visceral
membrane of abdominal cavity that adheres to the abdominal wall
parietal
