one muscle in the shoulder is the

HESI A2

Vocabulary HESI A2

1. Which muscle in the shoulder is the deltoid?

A. dendrite
B. delphic
C. deltoid
D. dentate

Correct answer: C

Rationale: The deltoid muscle is located in the shoulder area. It is a rounded, triangular muscle that covers the shoulder joint and is responsible for lifting the arm and providing shoulder stability. The other options provided, dendrite, delphic, and dentate, are not muscles in the shoulder region.

2. What does the quoted word 'occluded' mean in the following sentence? The nurse reported that the patient's circulation to that foot was 'occluded'.

A. Normal
B. Impaired
C. Inadequate
D. Obstructed

Correct answer: D

Rationale: The correct answer is D, 'Obstructed.' 'Occluded' means blocked or obstructed, indicating that the circulation to the foot was hindered. Choices A, B, and C are incorrect because 'occluded' does not mean normal, impaired, or inadequate but rather obstructed.

3. What does 'lethargic' mean?

A. Active
B. Difficult to arouse
C. Energized
D. Wide awake

Correct answer: B

Rationale: Lethargic refers to a state of sluggishness or drowsiness, making it difficult for a person to become alert or aroused. This term is the opposite of being active, energized, or wide awake. Choice A is incorrect as 'lethargic' is the opposite of 'active.' Choice C is incorrect as 'lethargic' implies a lack of energy. Choice D is incorrect as 'lethargic' signifies drowsiness, the opposite of being 'wide awake.' The correct answer is B.

4. Choose the meaning of the word 'mercurial' in the following sentence: 'Due to his mercurial temperament, Justin did not work well with others.'

A. Continuous
B. Unpredictable
C. Mercenary
D. Miraculous

Correct answer: B

Rationale: The word 'mercurial' in this sentence means unpredictable or prone to sudden changes in mood or behavior. Justin's temperament can be characterized as unpredictable, which is causing him to not work well with others. Choice A, 'Continuous,' does not align with the meaning of 'mercurial' as it implies a steady, uninterrupted flow. Choice C, 'Mercenary,' refers to being primarily motivated by money or reward, which is not the context here. Choice D, 'Miraculous,' means extraordinary or remarkable, which is not the intended meaning in this sentence.

5. Which word describes a screen or filter?

A. Permeable
B. Incendiary
C. Exuding
D. Resilient

Correct answer: A

Rationale: The word 'permeable' refers to a material or surface that allows liquids, gases, or substances to pass through it, while screening or filtering out impurities. This makes it an appropriate descriptor for a screen or filter, which function by allowing certain elements to pass through while retaining others. Choices B, C, and D are incorrect: 'Incendiary' means causing fires, 'Exuding' means giving off or releasing, and 'Resilient' means able to withstand or recover from difficult conditions.