Question 1

Which of the following is a primary function of the integumentary system?

Accepted Answer

Protection against mechanical injury and pathogens

Question 2

Which pigment is primarily responsible for the color of the epidermis and protects against UV radiation?

Accepted Answer

Melanin

Question 3

A patient presents with a fracture in the diaphysis of their femur. Which part of the bone is affected?

Accepted Answer

Diaphysis

Question 4

Which equation best represents the force generated by a muscle, given the cross-sectional area ($$A) $$and the specific tension ($$\sigma$$)?

Accepted Answer

$$F = A 	imes \sigma$$

Question 5

Which structure is responsible for transmitting the action potential deep into the muscle fiber?

Accepted Answer

Transverse tubules (T-tubules)

Question 6

Which of the following best describes the difference between gray matter and white matter in the central nervous system?

Accepted Answer

Gray matter contains cell bodies and dendrites; white matter contains myelinated axons.

Question 7

Which of the following is NOT a function of the skeletal system?

Accepted Answer

Production of hormones

Question 8

A patient is unable to distinguish between sweet and salty tastes. Which type of receptor is most likely malfunctioning?

Accepted Answer

Chemoreceptors

Question 9

Which of the following best describes the order of components in a reflex arc?

Accepted Answer

Receptor → Sensory neuron → Interneuron → Motor neuron → Effector

Question 10

Which equation correctly represents the relationship between bone mass ($$M$$), bone density ($$\rho$$), and bone volume ($$V$$)?

Accepted Answer

$$M = ho 	imes V$$

Question 11

Which of the following is a property of spongy bone that distinguishes it from compact bone?

Accepted Answer

Spongy bone contains trabeculae that provide structural support.

Question 12

Which of the following best describes the function of postganglionic fibers in the parasympathetic division?

Accepted Answer

They release acetylcholine to relax target organs.

Question 13

Which structure in the ear is primarily responsible for converting sound vibrations into electrical signals?

Accepted Answer

Organ of Corti

Question 14

Which of the following is a distinguishing feature of the male pelvic girdle compared to the female pelvic girdle?

Accepted Answer

Male pelvic girdle has a narrower pubic arch.

Question 15

Which equation best represents the calculation of the refractive power ($$P) of a $$lens given its focal length ($$f) in $$meters?

Accepted Answer

$$P = \frac{1}{f}$$

Question 16

Which of the following is true regarding the humors of the eye?

Accepted Answer

The vitreous humor maintains the shape of the eye.

Question 17

Which type of gland is responsible for producing sweat that helps regulate body temperature?

Accepted Answer

Eccrine gland

Question 18

Which of the following best describes the function of the efferent division of the nervous system?

Accepted Answer

Carries motor commands from the CNS to effectors

Question 19

Which of the following is a property of skeletal muscle that explains its striated appearance?

Accepted Answer

Presence of sarcomeres with alternating bands of actin and myosin

Question 20

A patient has damage to the ascending pathways of their spinal cord. Which function is most likely impaired?

Accepted Answer

Transmission of sensory information to the brain

ANP Study Guide: Integumentary, Skeletal, Muscular, and Nervous Systems

Study Guide - Practice Questions