Question 1

Which muscle is primarily responsible for flexion of the hip and knee joints during walking?

Accepted Answer

Sartorius

Question 2

A patient presents with difficulty extending their elbow and numbness in the posterior arm. Which nerve is most likely affected?

Accepted Answer

Radial nerve

Question 3

Which structure in the spinal cord contains ascending sensory tracts?

Accepted Answer

Dorsal horn

Question 4

During a reflex test, the patellar tendon is tapped and the leg extends. Which type of reflex is this?

Accepted Answer

Stretch reflex

Question 5

Which part of the brain is responsible for combining breathing, heart rate, and autonomic functions?

Accepted Answer

Medulla oblongata

Question 6

A patient cannot abduct their arm and has lost sensation over the lateral shoulder. Which nerve is most likely damaged?

Accepted Answer

Axillary nerve

Question 7

Which muscle group is responsible for shoulder adduction and medial rotation?

Accepted Answer

Pectoralis major

Question 8

Which cranial nerve transmits visual information from the retina to the brain?

Accepted Answer

Optic nerve (CN II)

Question 9

Which neurotransmitter is released by preganglionic neurons in both the sympathetic and parasympathetic divisions of the autonomic nervous system?

Accepted Answer

Acetylcholine

Question 10

A patient is unable to flex their wrist and has numbness in the lateral palm. Which nerve is most likely injured?

Accepted Answer

Median nerve

Question 11

Which equation correctly represents the relationship between nerve conduction velocity ($$v$$), distance ($$d$$), and time ($$t$$)?

Accepted Answer

$$v = \frac{d}{t}$$

Question 12

Which lobe of the brain is primarily responsible for decision making and personality?

Accepted Answer

Frontal lobe

Question 13

Which structure in the ear is responsible for converting sound waves into neural signals?

Accepted Answer

Cochlea

Question 14

Which of the following best describes the function of the corpus callosum?

Accepted Answer

Connects the left and right cerebral hemispheres

Question 15

A patient with damage to the occipital lobe would most likely experience which deficit?

Accepted Answer

Loss of vision

Question 16

Which equation represents the calculation of muscle force ($$F) $$given mass ($$m) $$and acceleration ($$a$$)?

Accepted Answer

$$F = m 	imes a$$

Question 17

Which of the following is a function of the parasympathetic nervous system?

Accepted Answer

Decreases heart rate

Question 18

Which muscle is responsible for plantar flexion of the foot?

Accepted Answer

Gastrocnemius

Question 19

Which structure in the spinal cord is responsible for transmitting motor signals to skeletal muscles?

Accepted Answer

Ventral horn

Question 20

A patient is unable to taste food on the anterior two-thirds of their tongue. Which cranial nerve is most likely affected?

Accepted Answer

Facial nerve (CN VII)

BIOL 2111A Final Lab Study Guide: Muscular and Nervous Systems

Study Guide - Practice Questions