Q: Which equation correctly represents the Nernst equation for calculating the equilibrium potential of an ion?

$$E = \frac{RT}{zF} \ln \left( \frac{[\text{ion}]_{\text{outside}}}{[\text{ion}]_{\text{inside}}} \right)$$

Q: Which equation represents the calculation of membrane potential using the Goldman-Hodgkin-Katz equation?

$$V_m = \frac{RT}{F} \ln \left( \frac{P_{K^+}[K^+]_{\text{out}} + P_{Na^+}[Na^+]_{\text{out}} + P_{Cl^-}[Cl^-]_{\text{in}}}{P_{K^+}[K^+]_{\text{in}} + P_{Na^+}[Na^+]_{\text{in}} + P_{Cl^-}[Cl^-]_{\text{out}}} \right)$$

Question 1

Which of the following best describes the difference between gray matter and white matter in the brain and spinal cord?

Accepted Answer

Gray matter contains neuron cell bodies and dendrites, while white matter is composed primarily of myelinated axons.

Question 2

A patient presents with loss of voluntary motor control in the right arm. Damage to which part of the spinal cord is most likely responsible?

Accepted Answer

Anterior horn

Question 3

Which cranial nerve is responsible for transmitting auditory information from the ear to the brain?

Accepted Answer

VIII (Vestibulocochlear)

Question 4

A patient has difficulty breathing and irregular heart rate after a brainstem injury. Which region is most likely affected?

Accepted Answer

Medulla oblongata

Question 5

Which neurotransmitter is primarily involved in the sympathetic division of the autonomic nervous system?

Accepted Answer

Norepinephrine

Question 6

If a person cannot distinguish between sweet and salty tastes, which cranial nerves might be impaired?

Accepted Answer

VII (Facial) and IX (Glossopharyngeal)

Question 7

Which of the following best explains referred pain, such as pain in the left arm during a heart attack?

Accepted Answer

Pain signals from the heart and arm share common spinal cord pathways.

Question 8

Which equation correctly represents the Nernst equation for calculating the equilibrium potential of an ion?

Accepted Answer

$$E = \frac{RT}{zF} \ln \left( \frac{[	ext{ion}]_{	ext{outside}}}{[	ext{ion}]_{	ext{inside}}} ight)$$

Question 9

Which structure in the ear is responsible for detecting linear acceleration and static equilibrium?

Accepted Answer

Utricle and saccule

Question 10

A patient is unable to move their eyes laterally. Which cranial nerve is most likely damaged?

Accepted Answer

VI (Abducens)

Question 11

Which of the following is NOT a function of the hypothalamus?

Accepted Answer

Coordination of voluntary muscle movement

Question 12

Which part of the neuron is primarily responsible for receiving synaptic inputs?

Accepted Answer

Dendrite

Question 13

Which of the following best describes the propagation of an action potential along a myelinated axon?

Accepted Answer

Saltatory conduction between nodes of Ranvier

Question 14

Which neurotransmitter is released at the neuromuscular junction to stimulate muscle contraction?

Accepted Answer

Acetylcholine

Question 15

A patient has lost the ability to feel pain and temperature on the left side of their body below the neck. Which tract is most likely damaged?

Accepted Answer

Spinothalamic tract

Question 16

Which of the following is true regarding the organization of the spinal cord?

Accepted Answer

Lateral horns contain autonomic motor neurons.

Question 17

Which of the following best describes the function of the thalamus?

Accepted Answer

Relays sensory information to the cerebral cortex

Question 18

Which equation represents the calculation of membrane potential using the Goldman-Hodgkin-Katz equation?

Accepted Answer

$$V_m = \frac{RT}{F} \ln \left( \frac{P_{K^+}[K^+]_{	ext{out}} + P_{Na^+}[Na^+]_{	ext{out}} + P_{Cl^-}[Cl^-]_{	ext{in}}}{P_{K^+}[K^+]_{	ext{in}} + P_{Na^+}[Na^+]_{	ext{in}} + P_{Cl^-}[Cl^-]_{	ext{out}}} ight)$$

Question 19

Which of the following is a function of glial cells in the nervous system?

Accepted Answer

Form myelin sheaths around axons

Comprehensive Study Notes: Nervous System, Special Senses, Muscles, and Tissues

Study Guide - Practice Questions

Study Guide - Flashcards