Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
14 Cards in this Set
- Front
- Back
|
digestive tract
|
oral cavity->pharynx->esophagus->stomach->small intestine->large intestine
|
|
|
digestive accessory organs
|
salivary glands, pancreas, liver, gall bladder
|
|
|
basement membrane
|
connects inner surface of epithelium to underlying connective tissue
|
|
|
simple epithelium
|
single layer of cells
|
|
|
stratified epithelium
|
multiple layers of cells
|
|
|
pseudostratified epithelium
|
single-layered, but appears stratified because cells vary in height
|
|
|
3 types of epithelial cell shapes
|
cuboidal, columnar, squamous
|
|
|
mucous membrane/mucosa
|
specialized epithelium that lines most body cavities
|
|
|
salivary amylase(ptyalin)
|
enzyme that hydrolyzes starch into simple sugars; contained in saliva
|
|
|
bolus
|
ball of food; created by tongue
|
|
|
pharynx
|
leads food from mouth into esophagus; also function in respiration as the passageway through which air enters the trachea
|
|
|
epiglottis
|
covers the trachea during swallowing to prevent food from going down the wrong passageway
|
|
|
peristalsis
|
rhythmic waves of involuntary muscle contractions in the esophagus
|
|
|
lower esophageal sphincter/cardiac sphincter
|
specialized ring of muscle in the lower esophagus that opens during peristalsis, allowing food to enter the stomach; closes after peristaltic wave
|
