Bowel Elimination Flashcards
- Absorb fluid and nutrients
- Temporary storage of feces
- Balancing fluid and electrolyte levels
- Allow elimination of waste and gas
Functions of GI tract
Digestion begins with mastication.
Mouth
Peristalsis moves food into the stomach
Esophagus
Stores food; mixes food, liquid, and digestive juices; moves food into small intestines
Stomach
Duodenum, jejunum, and ileum
Small Intestine
The primary organ of bowel elimination
Large Intestine
Expels feces and flatus from the rectum
Anus
These structures are necessary for the defecation process.
Organ of the GI tract
Physiological factors critical to bowel function and defecation include?
- normal GI tract function,
- sensory awareness of rectal distention and rectal contents,
- voluntary sphincter control, and
- adequate rectal capacity and compliance.
begins with movement in the left colon, moving stool toward the anus.
When stool reaches the rectum, distention causes relaxation of the internal sphincter and awareness of the need to defecate.
At the time of defecation, the external sphincter relaxes, and abdominal muscles contract, increasing intrarectal pressure and forcing the stool out.
Normal defecation process
Sometimes people use to assist in stool passage.
This method exerts pressure to expel feces through voluntary contraction of the abdominal muscles while maintaining forced expiration against a closed airway.
Valsalva maneuver
Increase risk for cardiac dysrhythmias and HTN using a valsalva maneuver
Patients with cardiovascular disease, glaucoma, increased intracranial pressure, or a new surgical wound
is painless, resulting in passage of soft, formed stool.
Normal defecation
Approximately 20 feet long
Extends from the stomach to the large intestine
Small Intestine
First 10 inches
Duodenum
About 8 feet long
Jejunum
About 11 feet long
Ileum
where is digestion completed?
Small Intestine
enzymes that function in the small intestine to assist in digestion
bile and pancreatic enzymes
where is vitamins and mineral absorbed?
small intestine
Extends from the ileum to the Anus
Approximately 5 feet long
No Digestion takes place in the large intestine
large intestine
Stores and eliminates undigested waste
Absorbs water, vitamins and minerals
Functions of large intestine
Cecum Appendix Ascending Colon Transverse Colon Descending Colon Sigmoid Colon Rectum Anus
Large Intestine
can give nurses a lot of information; therefore it is important to ask questions related to bowel elimination & monitor this
Fecal Assessment