$$ \mathrm{ATP} + \mathrm{H}_2\mathrm{O} \rightarrow \mathrm{ADP} + \mathrm{P}_i + \text{energy} $$

Question 1

Which of the following best describes a synovial joint?

Accepted Answer

A joint where bones are separated by a fluid-filled cavity, allowing free movement.

Question 2

Which bone is NOT part of the axial skeleton?

Accepted Answer

Femur

Question 3

A patient suffers a fracture to the humerus. Which type of bone tissue is most likely to be involved in the repair process?

Accepted Answer

Both compact and spongy bone

Question 4

Which of the following best describes the function of osteoclasts?

Accepted Answer

They break down bone matrix, releasing calcium into the blood.

Question 5

Which equation correctly represents the process of ATP hydrolysis in muscle contraction?

Accepted Answer

$$ \mathrm{ATP} + \mathrm{H}_2\mathrm{O} ightarrow \mathrm{ADP} + \mathrm{P}_i + 	ext{energy} $$

Question 6

Which muscle type is under voluntary control and is striated?

Accepted Answer

Skeletal muscle

Question 7

A soccer player tears a ligament in her knee. Which tissue is primarily affected?

Accepted Answer

Dense regular connective tissue

Question 8

Which term describes the movement of a limb away from the midline of the body?

Accepted Answer

Abduction

Question 9

Which of the following is an example of a synergist muscle action?

Accepted Answer

The biceps brachii and brachialis working together to flex the elbow.

Question 10

Which bone is part of the appendicular skeleton?

Accepted Answer

Scapula

Question 11

Which of the following best describes the role of calcium ions ($$ \mathrm{Ca}^{2+} ) in $$muscle contraction?

Accepted Answer

They bind to troponin, causing tropomyosin to move and expose actin binding sites.

Question 12

Which anatomical term refers to the front of the body?

Accepted Answer

Question 13

A patient is unable to extend his forearm at the elbow. Which muscle is most likely impaired?

Accepted Answer

Triceps brachii

Question 14

Which of the following is a function of the skeletal system?

Accepted Answer

Storage of minerals such as calcium and phosphorus

Question 15

Which word part means 'together'?

Accepted Answer

syn-

Question 16

Which of the following best describes the process of bone remodeling?

Accepted Answer

Osteoblasts and osteoclasts work together to maintain bone strength and mineral balance.

Question 17

Which equation represents the conversion of lactic acid to pyruvic acid during muscle recovery?

Accepted Answer

$$ \mathrm{C}_3\mathrm{H}_6\mathrm{O}_3 \rightarrow \mathrm{C}_3\mathrm{H}_4\mathrm{O}_3 + 2\mathrm{H}^+ $$

Question 18

Which of the following is an example of a pivot joint?

Accepted Answer

Atlantoaxial joint between the first and second cervical vertebrae

Question 19

Which term describes the process of increasing the angle between two bones at a joint?

Accepted Answer

Extension

Question 20

Which of the following best explains the role of antagonistic muscles?

Accepted Answer

They oppose the action of the prime mover to allow controlled movement.

Anatomy & Physiology Study Guide: The Skeletal and Muscular Systems (Chapters 5 & 6)

Study Guide - Practice Questions