Nursing Elites

1. What happens during expiration?

• A. The diaphragm contracts and the thoracic cavity expands.
• B. The diaphragm relaxes and the thoracic cavity contracts.
• C. The thoracic cavity expands, increasing pressure.
• D. The diaphragm relaxes and moves upward.

Correct answer: B

Rationale: The correct answer is B. During expiration, the diaphragm relaxes, causing the thoracic cavity to contract. As the thoracic cavity decreases in size, the pressure inside the lungs increases, leading to air flowing out of the lungs. This process helps to expel carbon dioxide-rich air from the body. Choices A, C, and D are incorrect. In choice A, the diaphragm contracting and the thoracic cavity expanding describes inspiration, not expiration. Choice C is incorrect because during expiration, the thoracic cavity actually decreases in size. Choice D is incorrect as the diaphragm moving upward is not a typical movement associated with expiration.

2. Which of the following best defines the word circumvent?

• A. To go around
• B. To go under
• C. To come near
• D. To come through

Correct answer: A

Rationale: The correct answer is A: 'To go around.' Circumvent means to find a way around an obstacle or to avoid something by cleverness or deception. Choice B, 'To go under,' is incorrect as circumvent does not involve going under something. Choice C, 'To come near,' is incorrect as circumvent does not mean to approach or get close to something. Choice D, 'To come through,' is incorrect as circumvent does not involve passing through something.

3. Which of the following structures is responsible for producing insulin?

• A. Liver
• B. Pancreas
• C. Gallbladder
• D. Spleen

Correct answer: B

Rationale: The correct answer is B: Pancreas. The pancreas is the organ responsible for producing insulin. Insulin is a hormone that helps regulate blood sugar levels by allowing cells to take in glucose from the bloodstream. The liver (choice A) plays a role in regulating blood sugar levels through glycogen storage and release but does not produce insulin. The gallbladder (choice C) stores bile produced by the liver to aid in digestion and has no direct involvement in insulin production. The spleen (choice D) is involved in immune function and blood storage but not in the production of insulin.

4. After water absorption in the large intestine, what waste product remains and is eventually eliminated from the body?

• A. Chyme
• B. Bolus
• C. Glucose
• D. Feces

Correct answer: D

Rationale: The correct answer is D: Feces. After the large intestine absorbs water and electrolytes from digested food material, the waste product that remains is feces. Feces consist of undigested food material, bacteria, and waste products that were not absorbed by the body. Choice A, Chyme, is incorrect as chyme is a semi-fluid mass of partially digested food that moves from the stomach to the small intestine. Choice B, Bolus, is incorrect as bolus refers to a rounded mass of food that is swallowed. Choice C, Glucose, is incorrect as glucose is a simple sugar that serves as a vital energy source for the body and is not a waste product in this context.

5. Which of the following pairs of words includes a suffix that changes the meaning of the second word from the first?

• A. fort; fortification
• B. mount; dismount
• C. flee; fleeing
• D. fame; famous

Correct answer: D

Rationale: The correct answer is D. Adding the suffix '-ous' to 'fame' changes it to an adjective, 'famous,' altering the meaning of the word. Choice A is incorrect because 'fortification' is derived from 'fort' but does not change its meaning significantly. Choice B is incorrect as 'dismount' is related to 'mount' but signifies the opposite action rather than a change in meaning. Choice C is incorrect as 'fleeing' is simply the present participle form of 'flee' and does not alter its fundamental meaning.

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