Question 1

During glycolysis, which of the following is the correct conversion involving glucose?

Accepted Answer

Glucose is converted to glucose-6-phosphate by the enzyme hexokinase.

Question 2

A patient presents with muscle weakness and is diagnosed with Myasthenia Gravis. Which neurotransmitter is most directly affected in this condition?

Accepted Answer

Acetylcholine

Question 3

Which of the following best describes the function of the sodium-potassium pump in neurons?

Accepted Answer

It actively transports $$3 Na$^+$$ ions out and $$2 K$^+$$ ions into the cell, maintaining the resting membrane potential.

Question 4

Place the following events of cell division in the correct order: 1) Anaphase, 2) Cytokinesis, 3) Prophase, 4) Telophase, 5) Metaphase.

Accepted Answer

3, 5, 1, 4, 2

Question 5

Which of the following statements about the blood-brain barrier is correct?

Accepted Answer

It restricts the passage of most substances from the blood into the CNS, protecting neural tissue from toxins.

Question 6

A woman falls while roller-skating and injures the bone where she wears her wedding ring. The nurse documents the injury to the distal phalanx, left hand. Which bone is injured?

Accepted Answer

Distal phalanx, left hand

Question 7

Which hormone stimulates the fight-or-flight response?

Accepted Answer

Epinephrine

Question 8

Which of the following is TRUE regarding the anatomy of the sympathetic and parasympathetic nervous systems?

Accepted Answer

Sympathetic preganglionic neurons are shorter than parasympathetic preganglionic neurons.

Question 9

Which of the following is a function of the hypothalamus?

Accepted Answer

Regulation of body temperature

Question 10

Which equation correctly represents the conversion of pyruvate to acetyl CoA?

Accepted Answer

$$\mathrm{Pyruvate} + \mathrm{NAD}^+ + \mathrm{CoA} \rightarrow \mathrm{Acetyl\ CoA} + \mathrm{CO}_2 + \mathrm{NADH}$$

Question 11

Which of the following best describes the absolute refractory period in a neuron?

Accepted Answer

It is the period during which a second action potential cannot be initiated, regardless of stimulus strength.

Question 12

Which cranial nerve is responsible for the sense of smell?

Accepted Answer

Olfactory nerve (Cranial Nerve I)

Question 13

Which of the following is a correct statement about the mechanism of acetylcholine at the neuromuscular junction?

Accepted Answer

Acetylcholine binds to receptors on the muscle cell membrane, causing Na$$^+$$ influx and muscle contraction.

Question 14

Which of the following is TRUE regarding the function of cerebrospinal fluid (CSF)?

Accepted Answer

CSF cushions the brain and spinal cord, providing mechanical protection.

Question 15

Which of the following best describes the role of the longitudinal fissure in the brain?

Accepted Answer

It separates the left and right cerebral hemispheres.

Question 16

Which of the following is a characteristic of graded potentials in neurons?

Accepted Answer

They can vary in amplitude depending on the strength of the stimulus.

Question 17

Which of the following is TRUE about the function of the precentral gyrus?

Accepted Answer

It contains the primary motor cortex, responsible for voluntary movement.

Question 18

Which of the following best describes the role of the basal nuclei?

Accepted Answer

They are involved in the regulation of voluntary motor movements and procedural learning.

Question 19

Which of the following is TRUE regarding the mechanism of serotonin reuptake inhibitors (SSRIs)?

Accepted Answer

SSRIs block the reuptake of serotonin into the presynaptic neuron, increasing serotonin levels in the synaptic cleft.

Anatomy & Physiology Exam Review: Nervous System and Exam Question Formats

Study Guide - Practice Questions

Study Guide - Flashcards