Question 1

Which of the following best describes the primary function of the nervous system in the human body?

Accepted Answer

It is responsible for the rapid transmission of large amounts of information, detecting sensory stimuli and directing bodily changes.

Question 2

The nervous system is divided into two main parts. Which of the following correctly identifies these two divisions?

Accepted Answer

Central and peripheral nervous systems

Question 3

Which division of the autonomic nervous system is primarily responsible for 'fight or flight' responses?

Accepted Answer

Sympathetic division

Question 4

A patient is experiencing increased heart rate, dilated pupils, and inhibited digestion after a stressful event. Which system is most likely activated?

Accepted Answer

Sympathetic nervous system

Question 5

Which gland is known as the 'master gland' of the endocrine system due to its role in stimulating other glands?

Accepted Answer

Pituitary gland

Question 6

Which hormone is primarily released by the adrenal glands during a stress response?

Accepted Answer

Epinephrine

Question 7

Target tissues in the endocrine system respond to hormones because they possess:

Accepted Answer

Receptors for certain hormones

Question 8

Which of the following is a correct pairing of gland and hormone?

Accepted Answer

Pituitary gland - many stimulating hormones

Question 9

If a person has a deficiency in thyroxine, which gland is most likely affected?

Accepted Answer

Thyroid gland

Question 10

Which of the following best explains how the endocrine system differs from the nervous system in terms of communication?

Accepted Answer

The endocrine system uses hormones released into the bloodstream for slower, long-term regulation.

Question 11

A researcher is studying the effects of stimulating the sympathetic division of the autonomic nervous system. Which physiological change would they most likely observe?

Accepted Answer

Relaxation of bladder

Question 12

Which of the following equations best represents the relationship between hormone concentration ($$[H]$$), receptor availability ($$[R]$$), and cellular response ($$C) in a $$simplified model?

Accepted Answer

$$C = [H] 	imes [R]$$

Question 13

Which of the following is NOT a function of the parasympathetic division of the autonomic nervous system?

Accepted Answer

Accelerates heart rate

Question 14

A patient with damage to the pituitary gland may experience problems with which of the following?

Accepted Answer

Stimulation of other endocrine glands

Question 15

Which of the following best describes the role of the gonads in the endocrine system?

Accepted Answer

They produce testosterone and estrogen, which regulate reproductive functions.

Question 16

Which of the following scenarios best illustrates the interaction between the nervous and endocrine systems?

Accepted Answer

A person experiences increased heart rate and sweating after being startled, followed by a prolonged feeling of alertness due to hormone release.

Question 17

Which of the following statements about the central nervous system (CNS) is correct?

Accepted Answer

The CNS consists of the brain and spinal cord.

Question 18

Which of the following best explains why the nervous system can respond more rapidly than the endocrine system?

Accepted Answer

Nerve impulses travel faster than hormones because they are electrical signals transmitted along neurons.

Question 19

Which of the following is a direct effect of stimulating the parasympathetic division?

Accepted Answer

Constriction of bronchi

Question 20

A scientist is investigating the effect of a new drug that blocks epinephrine receptors. Which physiological response would most likely be reduced in subjects given this drug?

Accepted Answer

Heart rate acceleration during stress

Biopsychology: Communication Systems of the Body

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