Q: Which equation best represents the process of sensory transduction in a receptor?

$$\text{Stimulus} \rightarrow \text{Change in membrane potential} \rightarrow \text{Action potential}$$

Q: Which equation best represents the negative feedback mechanism of a spinal reflex?

$$\text{Stimulus} \rightarrow \text{Receptor} \rightarrow \text{Integration center} \rightarrow \text{Effector} \rightarrow \text{Response}$$

Question 1

Which of the following best describes the difference between sensation and perception in the nervous system?

Accepted Answer

Sensation is the conscious or subconscious awareness of changes in the environment, while perception is the conscious interpretation of those sensations by the cerebral cortex.

Question 2

A patient presents with numbness and pain in the fingers, which is diagnosed as carpal tunnel syndrome. Which nerve is most likely affected?

Accepted Answer

Median nerve

Question 3

Which cranial nerve is responsible for the sense of smell?

Accepted Answer

Olfactory nerve (I)

Question 4

Which type of sensory receptor is most likely to adapt rapidly to a continuous stimulus?

Accepted Answer

Phasic receptor

Question 5

A person experiences pain in the left arm during a heart attack. This is an example of:

Accepted Answer

Referred pain

Question 6

Which cranial nerve innervates the superior oblique muscle of the eye and is responsible for looking down and to the side?

Accepted Answer

Trochlear nerve (IV)

Question 7

Which of the following is NOT a general sense?

Accepted Answer

Vision

Question 8

Which equation best represents the process of sensory transduction in a receptor?

Accepted Answer

$$	ext{Stimulus} ightarrow 	ext{Change in membrane potential} ightarrow 	ext{Action potential}$$

Question 9

Which cranial nerve is the only one to extend beyond the head and neck into the thoracic and abdominal cavities?

Accepted Answer

Vagus nerve (X)

Question 10

Which of the following best describes the function of proprioceptors?

Accepted Answer

Monitoring the position and movement of body parts

Question 11

A patient with Bell's palsy would most likely have inflammation of which cranial nerve?

Accepted Answer

Facial nerve (VII)

Question 12

Which spinal nerve branch directly innervates the intercostal muscles?

Accepted Answer

Ventral ramus of thoracic nerves (T1-T12)

Question 13

Which of the following is true regarding spinal nerves?

Accepted Answer

They are mixed nerves carrying both afferent and efferent fibers

Question 14

Which cranial nerve is responsible for hearing and equilibrium?

Accepted Answer

Vestibulocochlear nerve (VIII)

Question 15

Which of the following is a monosynaptic reflex involving muscle spindles?

Accepted Answer

Patellar reflex

Question 16

Which equation best represents the negative feedback mechanism of a spinal reflex?

Accepted Answer

$$	ext{Stimulus} ightarrow 	ext{Receptor} ightarrow 	ext{Integration center} ightarrow 	ext{Effector} ightarrow 	ext{Response}$$

Question 17

Which of the following is NOT a function of the glossopharyngeal nerve (IX)?

Accepted Answer

Vision

Question 18

Which nerve is most likely to be damaged if a patient cannot extend their leg at the knee?

Accepted Answer

Femoral nerve

Question 19

Which of the following best describes the Babinski sign in adults?

Accepted Answer

Pathological response indicating absence of descending inhibition

Question 20

Which of the following is true about the organization of the nervous system?

Accepted Answer

The peripheral nervous system (PNS) includes cranial and spinal nerves that connect the CNS to the rest of the body.

Chapter 13: The Peripheral Nervous System and Reflex Activity – Study Notes

Study Guide - Practice Questions

Study Guide - Flashcards