Question 1

Which of the following best describes the structure of a typical nerve?

Accepted Answer

A group of axons, blood vessels, and connective tissue organized into fascicles

Question 2

Which cranial nerve is most associated with the autonomic nervous system, particularly in parasympathetic control of thoracic and abdominal organs?

Accepted Answer

Vagus nerve (X)

Question 3

A patient presents with a painful rash along a single strip of skin on the torso. This pattern is best explained by:

Accepted Answer

Shingles affecting a specific dermatome innervated by a spinal nerve

Question 4

Which of the following correctly lists the steps in a simple reflex arc?

Accepted Answer

Sensory receptor → Sensory neuron → Integration center → Motor neuron → Effector

Question 5

Which neurotransmitter is primarily released by postganglionic neurons of the sympathetic nervous system?

Accepted Answer

Norepinephrine

Question 6

If a person’s heart rate increases and pupils dilate in response to stress, which division of the autonomic nervous system is responsible?

Accepted Answer

Sympathetic nervous system

Question 7

Which equation best represents the relationship between stimulus intensity and frequency of action potentials in a sensory neuron?

Accepted Answer

$$f = k 	imes I$$

Question 8

Meissner’s corpuscles are most sensitive to which type of sensation?

Accepted Answer

Light touch and vibration

Question 9

Which of the following is NOT a general sense?

Accepted Answer

Vision

Question 10

A person is unable to maintain balance when their head is tilted. Which structure is most likely impaired?

Accepted Answer

Semicircular canals

Question 11

Which of the following best explains why the blind spot exists in the human eye?

Accepted Answer

There are no photoreceptors where the optic nerve exits the retina

Question 12

Which pathway correctly traces the transmission of sound from the external environment to the brain?

Accepted Answer

External ear → Tympanic membrane → Ossicles → Cochlea → Auditory nerve

Question 13

Which of the following is a function of free nerve endings?

Accepted Answer

Detecting pain and temperature

Question 14

Which cranial nerve is responsible for transmitting visual information from the retina to the brain?

Accepted Answer

Optic nerve (II)

Question 15

Which of the following best describes adaptation in sensory receptors?

Accepted Answer

A decrease in receptor sensitivity after constant stimulation

Question 16

Which equation represents the calculation of equilibrium sensation based on head position and acceleration?

Accepted Answer

$$E = m 	imes a$$

Question 17

Which of the following is a correct association between receptor type and sensation detected?

Accepted Answer

Meissner’s corpuscles: light touch

Question 18

Which cranial nerve is responsible for the sense of smell?

Accepted Answer

Olfactory nerve (I)

Question 19

Which of the following best explains how different responses are produced in the same organ by the autonomic nervous system?

Accepted Answer

Different neurotransmitters and their specific receptors on target tissues

Question 20

Which of the following is a special sense?

Accepted Answer

Taste

Study Guide: Nervous System and Senses

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