HESI A2
Anatomy HESI A2 Practice Test
1. Which organ is responsible for the production of hormones during stress?
- A. Parathyroid gland
- B. Adrenal cortex
- C. Posterior pituitary gland
- D. Hypothalamus
Correct answer: B
Rationale: The adrenal cortex is the organ responsible for producing stress hormones like cortisol and aldosterone, which play a crucial role in the body's stress response. During stress, the adrenal cortex releases cortisol, a hormone that helps the body deal with stress by increasing blood sugar, suppressing the immune system, and aiding in metabolism. Parathyroid gland is responsible for calcium regulation, the posterior pituitary gland secretes hormones like oxytocin and vasopressin which are not directly related to the stress response, and the hypothalamus plays a role in regulating hormonal balance and various bodily functions but is not primarily responsible for producing stress hormones.
2. Select the word that correctly completes the following sentence: 'The intern was surprised by the ____ of pain he was in after his first day of work.'
- A. amount
- B. frequency
- C. number
- D. amplitude
Correct answer: A
Rationale: The correct answer is 'amount.' In this context, 'amount' is used to describe the intensity or level of pain, which is an uncountable noun. 'Frequency' (B) refers to how often something occurs, 'number' (C) is used for countable objects, and 'amplitude' (D) is typically used in the context of sound or waves, not pain.
3. What does 'Compensatory' mean?
- A. Harmful
- B. Offsetting or making up for something
- C. Adding unnecessary work
- D. Hindering
Correct answer: B
Rationale: The term 'Compensatory' means offsetting or making up for something. In this context, it refers to the act of providing something in order to make up for a deficiency or loss. It is not related to being harmful, hindering, or adding unnecessary work. 'Harmful' (Choice A), 'Adding unnecessary work' (Choice C), and 'Hindering' (Choice D) are incorrect as they do not align with the meaning of 'Compensatory.'
4. What does Flaccid mean?
- A. Rigid
- B. Limp or lacking tone
- C. Tense
- D. Swollen
Correct answer: B
Rationale: The correct answer is B: 'Limp or lacking tone.' Flaccid refers to something that is lacking firmness or muscle tone. Choice A, 'Rigid,' is incorrect as it is the opposite of flaccid. Choice C, 'Tense,' is also incorrect as it implies stiffness or tightness, which is different from being flaccid. Choice D, 'Swollen,' is unrelated to the meaning of flaccid.
5. The metric system of measurement was developed in France during Napoleon's reign. It is based on what multiplication factor?
- A. The length of Napoleon's forearm
- B. 2
- C. 10
- D. Atomic weight of helium
Correct answer: C
Rationale: The metric system is based on powers of 10, making calculations and conversions easier because each unit increases or decreases by a factor of 10. This factor allows for a simple and consistent way to move between different units within the system. Choice A, 'The length of Napoleon's forearm' is incorrect as the metric system is not based on a physical attribute but on a standardized mathematical factor. Choice B, '2,' and Choice D, 'Atomic weight of helium,' are also incorrect as they do not align with the foundational principle of the metric system being based on powers of 10.
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