Nursing Elites

1. Which type of muscles are involved in peristalsis?

• A. Smooth muscles
• B. Cardiac muscles
• C. Skeletal muscles
• D. Epaxial muscles

Correct answer: A

Rationale: Peristalsis is a coordinated, wave-like muscular contraction that propels food and other materials through the digestive tract. Smooth muscles are responsible for this movement in the gastrointestinal tract, providing the involuntary contractions needed for peristalsis to occur. Skeletal muscles, cardiac muscles, and epaxial muscles are not directly involved in peristalsis. Cardiac muscles are found in the heart and are responsible for its contraction. Skeletal muscles are attached to bones and control voluntary movements. Epaxial muscles are located along the vertebral column and are involved in the movement and stabilization of the spine.

2. What word is best to substitute for the underlined words in the following sentence? The coats hanging on the hooks are the patients’.

• A. his
• B. their
• C. them
• D. theirs

Correct answer: B

Rationale: The word 'their' is the correct possessive pronoun to use in this sentence because it indicates that the coats belong to multiple patients. 'Their' shows ownership by a plural group, which is the most suitable choice in this context. Choice A, 'his,' is singular and would imply that all the coats belong to one male patient, which is not the case. Choice C, 'them,' is a pronoun used for indicating objects or people and not possession. Choice D, 'theirs,' is a possessive pronoun but is used to refer to something that belongs to multiple people, not in this case where the coats belong to the patients.

3. Which of the following words or phrases fits best in the sentence below? Derek insists on working out daily ___________ his time is limited.

• A. despite
• B. due to
• C. even if
• D. whereas

Correct answer: A

Rationale: In the sentence, the word 'despite' is the best fit to convey the meaning that Derek insists on working out daily regardless of the limitation of his time. 'Despite' is used to show contrast or defiance against a situation or condition, making it the most suitable choice among the options provided. Choice B, 'due to,' would imply that Derek is working out daily because his time is limited, which is not the intended meaning of the sentence. Choice C, 'even if,' suggests a conditional scenario which does not align with the context of Derek's daily routine. Choice D, 'whereas,' introduces a comparison between two contrasting clauses, which does not fit the sentence where the focus is on Derek's persistence in working out despite limited time.

4. Which is another name for thiamine?

• A. Vitamin B1
• B. Vitamin B2
• C. Vitamin B6
• D. Vitamin D

Correct answer: A

Rationale: Thiamine is another name for Vitamin B1. It is an essential vitamin that plays a crucial role in energy metabolism and is important for the proper functioning of the nervous system. Vitamin B2 is riboflavin, not thiamine. Vitamin B6 is pyridoxine, not thiamine. Vitamin D is a different vitamin responsible for calcium absorption and bone health, not thiamine. Therefore, the correct answer is Vitamin B1.

5. In fluid dynamics, the continuity equation, a fundamental principle, expresses the conservation of:

• A. Momentum
• B. Mass
• C. Energy
• D. Angular momentum

Correct answer: B

Rationale: The continuity equation in fluid dynamics is a statement of the conservation of mass, making choice B the correct answer. It states that the mass entering a system must equal the mass leaving the system, assuming no mass is created or destroyed within the system. Conservation of momentum (choice A) is related to Newton's laws of motion and is not directly expressed by the continuity equation. Conservation of energy (choice C) involves different principles like the first law of thermodynamics and is not the focus of the continuity equation. Angular momentum (choice D) is also a different concept related to rotational motion and not described by the continuity equation.

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