This presentation is for Medical Terminology class online.

1. Digestive System
By Christy Ashinze

2.  Food breakdown in smaller component
 Absorbed and assimilated into the body
 Unabsorbed food is eliminated as solid waste.

3.  Digestion starts in the mouth
 Saliva secret enzymes amylase, which acts on the
food in the mouth
 Mastication is done with the help of the teeth
and by muscular contraction of peristalsis
 Produce bolus to help pass food through the
esophagus into the stomach
 Gastric juice is produced in the stomach

4.  nasogastric - NG
 gastrointestinal – GI
 hepatitis B virus – HBV
 fecal occult blood test
– FOBT
 inflammation bowel
disease - IBD
 herpes simplex virus
type 1 – HSV-1
 aspartate transaminase
- AST
 After meal – pc
 Peptic ulcer disease –
PUD
 gastroesophageal
reflux disease -GERD

5.  Refer to diseases involving the
gastrointestinal tract, namely the esophagus,
stomach, small intestine, large intestine and
rectum.
Symptoms:
 Heartburn, indigestion/dyspepsia, bloating
and constipation.

6.  Gastroesophageal
reflux disease also
known as GERD)
acid reflux, and/or
heartburn is a
condition in which
the acidified liquid
content of the
stomach backs up
into the
esophagus.

7.  An ulcer means open
sore
 Peptic” means that the
cause of the problem
is due to acid
 The two words
combined is known as
peptic ulcer disease.

8.  Two types:
 Ulcerative colitis and
Crohn's disease
 The large intestine
(colon) is inflamed in
ulcerative colitis,
which involves the
inner lining of the
colon.
 In Crohn's disease
the inflammation
extends deeper into
the intestinal wall.
Crohn's disease can
also involve the small
intestine (ileitis), or
can involve both the
small and large
intestine (ileocolitis).