A&P Dig. Sys. Secretions of sm. intestine- anus
Order by
49 terms
Terms | Definitions |
|---|---|
 secretions of small intestine | mucus, digestive enzymes |
| peptidases | helps with the breakdown of proteins into amino acids |
| Sucrase, maltase, lactase | breakdown dissacharides into monosaccharides |
| intestinal lipase | splits lipids into glycerol and fatty acids |
| most important organ for absorption in the digestive system is | small intestine is most important |
| CHO starts in the _______ and finishes in the ______ | mouth, small intestine |
| Protein digestion starts in the _________and is completed in the ________ | stomach, small intestine |
| Fats/Lipids are most completely absorbed in the | small intestine |
| The small intestine also absorbs some | water and electrolytes |
| how does chyme move through the small intestine | mixing movements and peristalsis |
| how long does it take for chyme to move through entire small intestine | 3-10 hours |
| what is the valve called between the small intestine and cecum | ileocecal valve |
| how does the ileocecal valve work | relaxes to let what is left of chyme to enter the large intestine |
| what is another name for the large intestine | colon |
| how long is the large intestine | approx 5 feet long |
| differences of large intestine from small intestine | greater in width |
| differences of large intestine from small intestine | no villi on inner surface |
| differences of large intestine from small intestine | little or no digestion function |
| differences of large intestine from small intestine | serves to reabsorb water and electrolytes from what remains of chyme |
| differences of large intestine from small intestine | forms and stores feces until defecation occurs |
| cecum | 1st part of lg intestine; it is a pouch in the RLQ of the abdomen |
| Vermiform APPENDIX | attached to the base of cecum and is a slender blind tube |
| ascending colon | extends upward from cecum to underneath the liver and turns sharply to the left |
| transverse colon | lies over the small intestine and below the stomach and liver and turns downward |
| descending colon | goes downward on the left side of abdomen |
| sigmoid colon | s shaped part of colon after the desecending colon |
| hepatic flexure | sharp turn between the ascending colon and transverse colon |
| splenic flexure | turn between the transverse colon and descending colon |
| rectum | 5 inches long and it terminates in the anal canal |
| anal canal | 1 1/2 inches long |
| anus | opening to the outside |
| anal canal has 2 sphincter muscles | internal rectal sphincter and external rectal sphincter |
| internal rectal sphincter | smooth muscle- involuntary |
| external rectal sphincter | skeletal muscle- voluntary |
| pouches on the outside of large intestine | haustra |
| what is the large intestine line with | mucous membrane |
| when chyme reaches the large intestine | has very few nutrients remaining; contains indigestable products, water, mucus, bacteria, and some electrolytes |
| what does the large intestine absorb | water and electrolytes |
| what causes gas in the large intestine | bacterial action |
| medical term for gas | flatus |
| how many times does peristalsis occur per day in the large intestine | 2-3 times |
| what does feces contain | indigestable material, water, mucus, electrolytes, and bacteria |
| what is the bacteria found in the colon | E. coli |
| what is the color of feces due to | bile pigments |
| what is the odor of feces due to | bacteria |
| what happens when a person defecates | releases contents of rectum by increased abdominal pressure, holding their breath, and bearing down |
| what does fiber do in the colon | helps strengthen contractions of colon and softens stool |
| what is constipation | infrequency of or difficulty with defecation |
| diarrhea is | feces travel too rapidly through the large intestine |
First Time Here?
Welcome to Quizlet, a fun, free place to study. Try these flashcards, find others to study, or make your own.