Nokea
Which statement about chemical digestion in the human alimentary canal is correct?
- A. Digestion of carbohydrates is completed in the colon.
- B. Enzymes are secreted to break down cellulose in the duodenum.
- C. Protein digestion is completed in the ileum.
- D. The stomach secretes enzymes to break down starch.
Correct Answer: C
Rationale: Protein digestion begins in the stomach with pepsin and is completed in the ileum by proteolytic enzymes from the pancreas and intestinal mucosa.
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The pancreas makes the following hormones:
- A. Oestrogen and progesterone
- B. Insulin and Glucagon
- C. Testosterone and Oestrogen
- D. Anti Diuretic Hormone and adrenalin
Correct Answer: B
Rationale: The pancreas produces insulin and glucagon to regulate blood sugar.
A client is being prepared for a colonoscopy, a test to visualize the large intestine. The nurse is aware that this examination will assist in identification of pathology of the:
- A. Large intestine
- B. Stomach
- C. Small intestine
- D. Esophagus
Correct Answer: A
Rationale: A colonoscopy visualizes the large intestine to detect abnormalities.
What is frenulum?
- A. It is the fold by which tongue is attached to the floor of oral cavity.
- B. It is uvula is present on pharyngeal wall
- C. It is a tonsil like structure on the lateral walls of palate
- D. It is V-shaped furrow which divides the surfaces of tongue
Correct Answer: A
Rationale: The frenulum is a fold of tissue that anchors the tongue to the floor of the mouth.
Secretin is a hormone that:
- A. stimulates the release of pancreatic fluid
- B. converts trypsinogen into trypsin
- C. activates chymotrypsin
- D. inhibits the action of pancreatic lipase
Correct Answer: A
Rationale: Secretin stimulates the pancreas to release bicarbonate-rich fluids to neutralize stomach acid.
The nutrient that is needed in small amounts that helps to regulate body processes and perform chemical reactions is
- A. vitamins
- B. minerals
- C. fibre
- D. carbohydrate
Correct Answer: A
Rationale: Vitamins are required in small amounts to regulate body processes and support various chemical reactions in the body.