GI System Lindsey Flashcards
GI system is
Gastrointestinal System
Purpose of the Digestive System (GI)
To break down food into monomers
Digestive Tract is layered into how many layers
4 layers
What are the 2 special features of the stomach?
Rugae: Folds and connective tissue can contract and expand.
Oblique Muscle: to held with mechanical digestion
What type of digestion takes place in stomach?
Mechanical and chemical
Where does the majority of the digestion and absorbtion take place in the GI tract
Small intestines: enzymes are being added
How long on average does it take for the stomach to empty after meal
4 hours
Why doesnt the stomach digest itself
Mucus
Symptoms that may indicate GI dysfunction
Nausea and vomiting Diarhea Anorexia Dysphagia Achalasia Abdominal pain GI bleeding Fecal incontinence
Intestinal cells are sluffed off and renewed every __ days
5
Injury to intestinal cell moderate injury takes cells __ to __ months to recover.
3-6 months
Severe injury (infection etc takes __ to ___ months to recover
12-18
Syndrome
Cluster of symptoms
Rugae
Folds and connective tissue can contract and expand
Chyme
acidic fluid in stomach and small intestine (juices and partly digested food)
Peristalsis
Wave like muscle contraction moving food along
mucosa
mucus membrane
NSAID
Non steriod anti inflammatory drugs
H pylori
bacteria in stomach
Anti secretory drugs
stop enzymes, decrease gastric acid
Emesis
Vomitting
Hematemisis
vomitting of blood
Occult bleeding
gastro bleeding with no signs and positive fecal blood test
physiological stress
trauma burns surgery response to a stress
psychological stress
anxiety depression poor coping to stress that is unmanageable
Mechanical obstruction
bowel obstruction
peritoneum
membrane lining of abdominal
periatal
lines abdominal wall
visceral
outer layer of abd organs
