FECAL Flashcards
Elimination of waste products of digestion from the body is essential to health
Physiology of Defacation
Extends from Ileocecal valve to anus
Large Intestine
how long is the large intestine
125 - 150 cm (50 - 60 in)
Contents of the colon represent foods ingested over the previous __ days
4
Most waste products excreted within __ hours of ingestion
48
what is the main function of the colon
absorption of water and nutrients after eating (ingestion)
Waste products leaving the stomach through the small intestine and then passing through the ileocecal valve
Chyme
________ in the colon protects lining from acid in feces and from bacterial activity
Mucus
largely air and by-products
of the digestion of carbohydrates
Flatus
Wavelike movement that propels intestinal contents forward
Peristalsis
movement of the chyme back and forth within the haustra
Haustral churning
very sluggish and is thought to move the chyme very little along the large intestine
Colon peristalsis
powerful muscular contraction that moves over large areas of the colon
Mass peristalsis
Internal sphincter under ___________ control
involuntary
External sphincter under ___________ control
voluntary
Excreted waste products are referred to as _______ or ______
- feces
- stool
Expulsion of feces assisted by contraction of the abdominal muscles and diaphragm
Defecation
Semi-solid mass of waste products in the colon that is expelled through the anus
Feces
list factors that affect defacation
-development
-activity
-diet
-psychological factors
-defecation habits
-medications
-certain foods
-diagnostic procedures
-anesthesia and surgery
-pathologic conditions
-pain
-fluid intake and output
cabbage, onions, cauliflower, bananas, apples
are what type of foods
gas-producing