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

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

Q: Which equation best 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 function of the myelin sheath in the nervous system?

Accepted Answer

It increases the speed of action potential conduction along the axon.

Question 2

A patient presents with loss of fine motor control and muscle weakness. MRI reveals demyelination in the central nervous system. Which glial cell type is most likely affected?

Accepted Answer

Oligodendrocytes

Question 3

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

Accepted Answer

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

Question 4

Which structure is responsible for producing cerebrospinal fluid (CSF) in the brain?

Accepted Answer

Choroid plexus

Question 5

A patient has difficulty with balance and coordination. Which part of the brain is most likely affected?

Accepted Answer

Cerebellum

Question 6

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

Accepted Answer

Gray matter contains neuron cell bodies; white matter contains myelinated axons.

Question 7

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

Accepted Answer

Optic nerve (II)

Question 8

A patient is unable to feel pain or temperature in their right arm. Which type of sensory receptor is most likely damaged?

Accepted Answer

Nociceptors

Question 9

Which of the following best describes the role of the sympathetic nervous system?

Accepted Answer

It prepares the body for 'fight or flight' responses.

Question 10

Which equation best represents Ohm's Law as applied to the movement of ions across a neuronal membrane?

Accepted Answer

$$I = \frac{V}{R}$$

Question 11

A patient has damage to the dorsal root of a spinal nerve. Which function is most likely impaired?

Accepted Answer

Sensory input to the spinal cord

Question 12

Which of the following structures connects the two cerebral hemispheres?

Accepted Answer

Corpus callosum

Question 13

Which neurotransmitter is primarily released by preganglionic neurons of both the sympathetic and parasympathetic nervous systems?

Accepted Answer

Acetylcholine

Question 14

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

Accepted Answer

It regulates homeostasis, including temperature, hunger, and thirst.

Question 15

A patient has difficulty hearing and is diagnosed with damage to the cochlear nerve. Which type of receptor is most likely affected?

Accepted Answer

Mechanoreceptors

Question 16

Which of the following is a function of the medulla oblongata?

Accepted Answer

Regulation of heart rate and breathing

Question 17

Which equation best 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 18

Which of the following best describes the function of the limbic system?

Accepted Answer

It is involved in emotion, motivation, and memory.

Question 19

A patient is unable to move their left leg after a spinal cord injury. Which part of the spinal cord is most likely damaged?

Accepted Answer

Ventral (anterior) horn

Question 20

Which of the following structures is responsible for relaying sensory information to the cerebral cortex?

Accepted Answer

Thalamus

Comprehensive Study Notes: Nervous System Anatomy & Physiology

스터디 가이드 - 연습 문제

학습 가이드 - 플래시카드