Question 1

Which of the following is NOT a primary function of the appendicular musculature?

Accepted Answer

Producing red blood cells

Question 2

A patient presents with difficulty abducting their arm at the shoulder joint. Which muscle is most likely impaired?

Accepted Answer

Deltoid

Question 3

Which muscle is responsible for both flexion at the elbow and supination of the forearm?

Accepted Answer

Biceps brachii

Question 4

If a muscle inserts close to a joint and is primarily responsible for rapid movement and torque, it is classified as a:

Accepted Answer

Spurt muscle

Question 5

Which of the following muscles is part of the rotator cuff and is responsible for medial rotation at the shoulder?

Accepted Answer

Subscapularis

Question 6

A baseball pitcher suffers an injury to the muscle that extends and adducts the arm at the shoulder. Which muscle is most likely affected?

Accepted Answer

Latissimus dorsi

Question 7

Which compartment of the upper arm contains the biceps brachii, brachialis, and coracobrachialis muscles?

Accepted Answer

Anterior compartment

Question 8

During walking, which muscle group is primarily responsible for absorbing shocks and jolts in the lower limb?

Accepted Answer

Muscles of the pelvic girdle and lower limb

Question 9

Which muscle is responsible for extension and lateral rotation at the hip and inserts via the iliotibial tract?

Accepted Answer

Gluteus maximus

Question 10

A patient is unable to flex their wrist but can still abduct it. Which muscle is most likely still functioning?

Accepted Answer

Flexor carpi radialis

Question 11

Which of the following muscles is found in the deep anterior compartment of the forearm?

Accepted Answer

Flexor digitorum profundus

Question 12

Which muscle allows crossing of the lower leg and is NOT part of the quadriceps group?

Accepted Answer

Sartorius

Question 13

Which muscle is responsible for plantar flexion and inserts onto the calcaneal tendon?

Accepted Answer

Gastrocnemius

Question 14

Which intrinsic muscle of the hand is responsible for abduction of the little finger?

Accepted Answer

Abductor digiti minimi

Question 15

A patient presents with weakness in medial rotation and adduction at the hip. Which muscle is most likely affected?

Accepted Answer

Adductor longus

Question 16

Which muscle is responsible for pronation of the forearm and is located in the deep anterior compartment?

Accepted Answer

Pronator quadratus

Question 17

Which equation best represents the torque ($$	au) $$produced by a spurt muscle acting at a joint?

Accepted Answer

$$	au = F 	imes d$$

Question 18

Which muscle group is collectively known as the quadriceps femoris and is responsible for extension of the leg at the knee?

Accepted Answer

Vastus intermedius, vastus lateralis, vastus medialis, rectus femoris

Question 19

Which muscle is responsible for dorsiflexion and inversion of the foot?

Accepted Answer

Tibialis anterior

Question 20

Which of the following statements about the compartments of the thigh is correct?

Accepted Answer

The thigh is divided into anterior, posterior, and medial compartments

Chapter 11: The Muscular System – Appendicular Musculature Study Notes

Study Guide - Practice Questions