EXAM QUESTIONS AND ANSWERS
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bowel elimination - ✔✔- is the process of removing solid wastes products
from our digestive tract.
GASTROINTESTINAL TRACT - ✔✔- is a series of hollow organs joined in
a long, twisting tube from the mouth to the anus.
- It is responsible for the digestion of food, absorption of nutrients, and
elimination of waste products from the body
- absorbs high volumes of fluids, making fluid and electrolyte balance a
key function of the GI system.
mouth, pharynx, esophagus, stomach, duodenum - ✔✔Upper GIT
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,Upper GI Tract - ✔✔GI tract that is primarily responsible for the
INGESTION and INITIAL DIGESTION of food
Mouth - ✔✔- Where digestion begins with chewing and the mixing of food
with saliva, which contains enzymes that start breaking down foods
PHARYNX - ✔✔The throat, which serves as a pathway for the movement
of food from the mouth to the esophagus
ESOPHAGUS - ✔✔A muscular tube that transports food from the pharynx
to the stomach through peristaltic movements.
STOMACH - ✔✔- A hollow organ that mixes food with gastric juices,
including hydrochloric acid and digestive enzymes, to break down
proteins and churn the food into a semi-liquid form called CHYME.
- Store swallowed food and liquid
- Mix food with digestive enzymes and juices
- Regulate emptying of its contents into the small intestine. - ✔✔Functions
of stomach
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, DUODENUM - ✔✔- The first part of the small intestine
- It is where most chemical digestion occurs.
- It receives bile from the liver and gallbladder, as well as digestive
enzymes from the pancreas.
SMALL INTESTINES - ✔✔- Connects the stomach to the small intestines
- Longest part of the GIT, and it is where most of the digestion takes place
- 6 meters or 20 feet long
LOWER GI TRACT - ✔✔GI tract that is primarily responsible for the
absorption of nutrients and water, as well as the formation and excretion of
feces.
small intestine (jejunum and ileum) and large intestines, rectum, anus -
✔✔LOWER GI TRACT
JEJUNUM - ✔✔The middle part of the small
intestine where most nutrient absorption occurs.
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