Nursing Elites

1. Which system does the esophagus belong to?

• A. Endocrine system
• B. Digestive system
• C. Respiratory system
• D. Nervous system

Correct answer: B

Rationale: The esophagus is part of the digestive system. It is a muscular tube that connects the mouth to the stomach, allowing the passage of food and liquids from the mouth to the stomach for digestion. The esophagus plays a crucial role in the process of swallowing and digestion, which are essential functions of the digestive system. Choices A, C, and D are incorrect because the esophagus is not associated with the endocrine, respiratory, or nervous systems.

2. How is the plasma membrane arranged?

• A. In a single layer made of proteins
• B. In a double layer made of proteins
• C. In a single layer of phospholipids
• D. In a double layer of phospholipids

Correct answer: D

Rationale: The plasma membrane is arranged in a double layer of phospholipids, known as a phospholipid bilayer. This structure consists of two layers of phospholipid molecules with hydrophilic heads facing the exterior and hydrophobic tails facing the interior, providing a semipermeable barrier for the cell. Choice A is incorrect because the plasma membrane is not made of a single layer of proteins. Choice B is incorrect as the double layer is composed of phospholipids, not proteins. Choice C is incorrect as the plasma membrane is not made of a single layer of phospholipids but rather a double layer.

3. Enlargement of the thyroid, commonly known as a goiter, might be expected to affect ___________.

• A. swallowing
• B. insulin levels
• C. sleep
• D. digestion

Correct answer: A

Rationale: Enlargement of the thyroid, known as a goiter, can compress the nearby structures in the neck, including the esophagus. This compression can lead to symptoms such as difficulty swallowing (dysphagia) or a sensation of pressure in the throat. Therefore, an enlarged thyroid gland is expected to affect swallowing. Choices B, C, and D are incorrect because a goiter primarily affects structures in the neck due to its physical enlargement, rather than directly impacting insulin levels, sleep, or digestion.

4. Select the word that makes the following sentence grammatically correct: 'Tracey wore her hair in a French braid, ____ was the style at the time.'

• A. among
• B. it
• C. that
• D. which

Correct answer: D

Rationale: The correct answer is 'which' as it correctly introduces a defining clause describing the style of hair Tracey wore. 'Which' is used to provide additional information about the noun 'French braid' and helps specify the particular style among others. 'Among' (choice A) is incorrect as it is used to show a relation of one thing to many others. 'It' (choice B) is incorrect as it does not serve as a relative pronoun to introduce a clause. 'That' (choice C) is incorrect as it is not the most suitable relative pronoun to introduce a non-restrictive clause in this context.

5. A symptom that is transitory is ___________.

• A. short-lived
• B. damaging
• C. fluctuating
• D. degenerating

Correct answer: A

Rationale: A symptom that is transitory is short-lived. It appears temporarily and does not persist for an extended period of time. This term indicates that the symptom is not permanent or continuous but rather temporary or fleeting.\nChoice B, damaging, is incorrect as transitory refers to the duration of the symptom, not its impact. Choice C, fluctuating, is incorrect as it implies the symptom varies in intensity, not necessarily in duration. Choice D, degenerating, is incorrect as it suggests a worsening or deteriorating condition, which is not implied by transitory.

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