the jawbone may be called the

HESI A2

HESI A2 Vocabulary Quiz

1. The jawbone may be called the ___________.

A. mantis
B. mantua
C. mandible
D. manganite

Correct answer: C

Rationale: The jawbone is commonly referred to as the mandible in anatomy. It is the largest and strongest bone in the human face and forms the lower jaw, holding the lower teeth in place. "Mandible" is the correct anatomical term for this specific bone structure.

2. Select the meaning of the word 'reflex' in the sentence: 'The typical patellar reflex takes only 50 milliseconds between the initial tap and the leg extension.'

A. Replication
B. Convulsion
C. Reaction
D. Stretching

Correct answer: C

Rationale: In the context of the sentence, the word 'reflex' indicates a quick, automatic response by the body to a stimulus. The patellar reflex, also known as the knee-jerk reflex, involves the leg extending in response to a tap on the patellar tendon. Therefore, the word 'reaction' aligns closely with the nature of the patellar reflex in terms of a rapid and involuntary response. Choices A, B, and D are incorrect: 'Replication' does not capture the concept of a bodily response, 'convulsion' implies a sudden and uncontrollable movement which is not specific to the nature of the patellar reflex, and 'stretching' does not encompass the automatic and rapid nature of a reflex action.

3. What term refers to the description of events in the order of their occurrence?

A. Chronology
B. Notation
C. Documentation
D. Helicon

Correct answer: A

Rationale: The correct answer is 'Chronology,' which specifically means the arrangement of events in the order of their occurrence. 'Notation' refers to a system of symbols or signs used to represent information. 'Documentation' is the process of recording information, while 'Helicon' does not relate to the description of events.

4. Choose the meaning of the word inhibiting in the following sentence: 'This medication works by inhibiting the action of a certain enzyme.'

A. Occupying
B. Speeding
C. Hindering
D. Enhancing

Correct answer: C

Rationale: Inhibiting means to prevent, restrain, or impede. In the context of the sentence, inhibiting the action of a certain enzyme refers to hindering or slowing down the enzyme's activity. Choice A ('Occupying') is incorrect as inhibiting does not mean taking up space. Choice B ('Speeding') is incorrect as inhibiting does not mean to accelerate. Choice D ('Enhancing') is incorrect as inhibiting is the opposite of enhancing.

5. What does 'Discrete' mean?

A. Continuous
B. Distinct or separate
C. Mixed
D. Combined

Correct answer: B

Rationale: The correct answer is B, 'Distinct or separate.' Discrete refers to something that is individually separate and distinct, not continuous (choice A), mixed (choice C), or combined (choice D). In mathematics and other fields, discrete items are countable and distinct from each other.