1. Explain why a patient with liver disease would have intolerance to fatty
foods.: The liver produces bile which breaks down fats. If it is not producing bile
(or less bile), fats will not be broken down effectively.
2. Explain in detail how stomach contents enter small intestine: The pyloric
sphincter valve, located at the base of the stomach, relaxes causing a small
quantity of chyme to pass through the opening into the first part of the small
intestine. This initiates a reflex that causes the muscles of the sphincter to
contract and close the opening temporarily. Then the sphincter relaxes again and
allows more chyme to enter.
3. A patient experiencing vitamin toxicity. What type of vitamin would be
causing this toxicity?
A. Water soluble vitamin
B. Fat soluble vitamin
C. All of the above: B. Fat soluble vitamin, they are stored within the body's fat
stores making it harder for the body to rid itself of them.
4. Explain each digestive system functions are carried out by the small
intestine: Digestion and Absorption
Chemical digestion continues as enzymes from the pancreatic juices break down
starches and proteins, and begin digestion of fat.
Mechanical digestion continues as bile breaks down fat into smaller pieces
Absorption begins as digested food molecules, water and fat are absorbed into the
bloodstream.
5. Name and explain four main functions performed by the digestive system:
1.
Ingestion: when food enters the mouth
2. Digestion: food breakdown occurs when food is moved, mixed and exposed to
enzymes along the gastrointestinal tract. Divided into two parts, mechanical and
chemical.
A. Mechanical occurs when food is broken down in small pieces using the teeth to
chew food.
B. Chemical is the breakdown of food by enzymes
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3. Absorption: the process of loving digested food into the bloodstream
4. Defecation: the excretion of indigestible food from the anus
6. What is the purpose of hormone Ghrelin?
A. Increase hunger, decrease satiety
B. Increase hunger, increase satiety
C. Decrease hunger, increase satiety
D. Decrease hunger, decrease satiety: A. Increase hunger, decrease satiety
7. Which of the following statements is false?
A. The ileocecal valve controls the entrance of chyme into to the large intes-
tine.
B. Taste buds are located on the surface of the mouth and the wall of the
pharynx.
C. The liver, pancreas, and tongue are considered accessory organs to the
digestive system.
D. The stomach is located along the right side of the abdomen below the
diaphragm.
(It is located along the left side of the abdomen below the diaphragm): D.
The stomach is located along the right side of the abdomen below the diaphragm.
(It is located along the left side of the abdomen below the diaphragm)
8. True/false: lipids can be divided into two categories: complete or
incomplete: False- proteins can be divided into those two categories
9. True/false: Anabolism combines smaller molecules to make larger
molecules: True
10. True/False: The nasopharynx is the most superior region of the pharynx.:
True
11. True/false: the pharynx has three types of skeletal muscle:
circumferential, longitudinal and oblique: two, does not False - it only has
include an oblique layer
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