Nokea
The term used to describe the stomach's expansion to accommodate volume without any rise in intraluminal pressure is referred to as:
- A. Vomiting
- B. Activation of osmoreceptors
- C. Folding inward (invagination)
- D. Relaxation in response to stimulation (receptive relaxation)
Correct Answer: D
Rationale: Receptive relaxation allows the stomach to expand as food enters, mediated by the vagus nerve, without increasing pressure.
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Chymotrypsin is-
- A. Proteolytic enzyme
- B. Fat digestive enzyme
- C. Vitamin
- D. Hormone
Correct Answer: A
Rationale: Chymotrypsin is a proteolytic enzyme secreted by the pancreas.
Which of the following describes one function of the stomach?
- A. To introduce carbohydrates to food.
- B. To remove excess water from food.
- C. To temporarily store food.
- D. To absorb nutrients into the bloodstream.
Correct Answer: C
Rationale: The stomach temporarily stores food, mixing it with gastric juices for digestion.
The part of the stomach that meets the esophagus at the gastroesophageal sphincter is the:
- A. fundus
- B. cardia
- C. pylorus
- D. body
Correct Answer: B
Rationale: The cardia is the part of the stomach closest to the esophagus.
Match each term with the correct description: carries urine from bladder to outside of the body
- A. urethra
- B. urinary system
- C. bladder
- D. kidneys
Correct Answer: A
Rationale: The urethra carries urine from the bladder to the outside.
Which digestive processes take place in the mouth (buccal) cavity?
- A. chemical digestion
- B. mechanical digestion
- C. dissolving of nutrients
- D. all of the above
Correct Answer: D
Rationale: In the mouth, food undergoes mechanical digestion via chewing, chemical digestion through salivary amylase, and dissolving of nutrients.