what does the term contours refer to

HESI A2

Vocabulary for HESI A2

1. What do contours refer to?

A. Color
B. Shape
C. Size
D. Texture

Correct answer: B

Rationale: Contours refer to the shape or outline of something. They represent the boundaries or curves that define the outer edges of an object or form. Colors, sizes, and textures do not encompass the concept of contours, making them incorrect choices in this context.

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. If you are an assiduous worker, you are probably ______.

A. Lazy
B. Industrious
C. Inconsistent
D. Procrastinating

Correct answer: B

Rationale: The correct answer is B, 'Industrious.' Assiduous means showing great care and perseverance in your work, which aligns with being industrious. Choice A, 'Lazy,' is incorrect as it is the opposite of assiduous. Choice C, 'Inconsistent,' does not directly relate to being assiduous, and choice D, 'Procrastinating,' suggests delaying tasks which is contrary to being assiduous.

4. Select the meaning of the underlined word in the following sentence. The chemicals in plastic containers may be deleterious to children’s health.

A. Harmful
B. Deleting
C. Delightful
D. Inoffensive

Correct answer: A

Rationale: The word 'deleterious' means causing harm or damage. In this context, the sentence implies that the chemicals in plastic containers can be harmful to children's health. Therefore, the correct meaning of the underlined word is 'harmful,' making option A the most suitable choice. Option B 'Deleting' is incorrect because it refers to removing or erasing, which does not fit the context. Option C 'Delightful' is incorrect as it means causing great pleasure or delight, the opposite of the intended meaning. Option D 'Inoffensive' is incorrect as it means not causing any harm or annoyance, which is contrary to the negative impact described in the sentence.

5. Something that is viscous is thick and sticky. Another word for this might be ______?

A. Watery
B. Gelatinous
C. Fluid
D. Dry

Correct answer: B

Rationale: The correct answer is 'B: Gelatinous.' Viscous substances have a thick and sticky consistency, similar to the properties of gelatin. 'Watery' and 'fluid' are incorrect as they are opposite in meaning to viscous, which implies thickness and stickiness. 'Dry' is also incorrect as it does not capture the characteristic of being thick and sticky associated with viscosity.