Question 1

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

Accepted Answer

Produce hormones

Question 2

What is the primary difference between compact bone and spongy bone?

Accepted Answer

Compact bone is dense and smooth, while spongy bone has trabeculae and large spaces.

Question 3

Which of the following is an example of a long bone?

Accepted Answer

Femur

Question 4

What is the periosteum?

Accepted Answer

The outer covering of connective tissue on a bone

Question 5

Which structure is responsible for bone growth during childhood?

Accepted Answer

Epiphyseal plate

Question 6

Which hormone increases blood calcium levels?

Accepted Answer

Parathyroid hormone

Question 7

What is the function of osteoblasts?

Accepted Answer

To form bone

Question 8

During muscle contraction in the sliding filament model, what happens to actin and myosin?

Accepted Answer

Myosin heads form cross-bridges and pull actin filaments to slide past each other.

Question 9

What is the role of acetylcholinesterase in muscle contraction?

Accepted Answer

Breaks down acetylcholine to stop muscle contraction.

Question 10

What is the function of the sodium-potassium pump in restoring resting potential?

Accepted Answer

It pumps three sodium ions out and two potassium ions into the cell.

Question 11

Which division of the nervous system is responsible for voluntary control of skeletal muscles?

Accepted Answer

Somatic

Question 12

During depolarization in an action potential, what occurs?

Accepted Answer

Sodium enters the cell, causing the inside to become more positive.

Question 13

Which neurotransmitter is essential for skeletal muscle contraction?

Accepted Answer

Acetylcholine

Question 14

Which of the following muscle types is voluntary?

Accepted Answer

Skeletal muscle

Question 15

What is the primary function of rods in the retina?

Accepted Answer

To help us see in dim light

Question 16

Which cranial nerve controls lateral eye movement?

Accepted Answer

VI. Abducens

Question 17

What is the correct order of the pathway of impulses from the retina to the brain?

Accepted Answer

Retina $$\rightarrow$$ Optic nerve $$\rightarrow$$ Optic chiasma $$\rightarrow$$ Optic tract $$\rightarrow$$ Thalamus $$\rightarrow$$ Optic cortex

Question 18

Which fiber tract connects the left and right hemispheres of the brain?

Accepted Answer

Commissural fibers

Question 19

What is the primary function of cerebrospinal fluid (CSF)?

Accepted Answer

Providing cushion and buoyancy to the brain

Question 20

Which division of the autonomic nervous system is responsible for 'fight or flight'?

Accepted Answer

Sympathetic

Anatomy & Physiology Study Guide: Skeletal, Muscular, Nervous, and Sensory Systems

Study Guide - Practice Questions