Question 1

Which connective tissue layer directly surrounds individual skeletal muscle fibers?

Accepted Answer

Endomysium

Question 2

A patient presents with pain and limited movement after overstretching a muscle during a soccer game. Which treatment protocol is most appropriate for the initial management of this muscle strain?

Accepted Answer

PRICE method (Protect, Rest, Ice, Compression, Elevation)

Question 3

Which muscle shape is characterized by fascicles that feather out from both sides of a central tendon, as seen in the rectus femoris?

Accepted Answer

Bipennate

Question 4

Which of the following best describes the function of a synergist muscle during movement?

Accepted Answer

It assists the agonist and helps guide the movement

Question 5

A lever system in the body where the fulcrum is between the load and the force applied is known as which class of lever? Give a real-life anatomical example.

Accepted Answer

First-class lever; atlanto-occipital joint

Question 6

Which muscle is primarily responsible for closing the eyelids, such as during blinking or winking?

Accepted Answer

Orbicularis oculi

Question 7

During forced expiration, such as coughing, which muscle group is most active in raising intra-abdominal pressure?

Accepted Answer

Rectus abdominis, external and internal obliques

Question 8

A patient is unable to abduct their arm at the shoulder joint. Which muscle is most likely impaired?

Accepted Answer

Deltoid (central portion)

Question 9

Which muscle group is most important for stabilizing the shoulder joint during forceful overhead movements, and is commonly injured in athletes?

Accepted Answer

Rotator cuff muscles

Question 10

Which muscle is the primary agonist for flexion of the forearm at the elbow joint?

Accepted Answer

Brachialis

Question 11

A patient with a ruptured calcaneal tendon will be unable to perform which movement?

Accepted Answer

Plantarflexion of the foot

Question 12

Which muscle is known as the 'boxer’s muscle' due to its role in protracting the scapula during a punch?

Accepted Answer

Serratus anterior

Question 13

Which muscle group is targeted by Kegel exercises to treat urinary incontinence?

Accepted Answer

Levator ani muscle

Question 14

Which of the following muscles is a powerful thigh flexor and is formed by the union of two muscles?

Accepted Answer

Iliopsoas

Question 15

Which muscle is responsible for elevating the mandible during mastication?

Accepted Answer

Masseter

Question 16

Which muscle group is primarily responsible for extending the vertebral column and maintaining posture?

Accepted Answer

Erector spinae

Question 17

A patient is unable to move their eye laterally. Which extrinsic eye muscle is most likely paralyzed?

Accepted Answer

Lateral rectus

Question 18

Which muscle is the main agonist for dorsiflexion of the foot?

Accepted Answer

Tibialis anterior

Question 19

Which of the following best describes the action of the sternocleidomastoid muscle when both sides contract together?

Accepted Answer

Flexes the head

Question 20

Which muscle is responsible for compressing the abdominal cavity and raising intra-abdominal pressure, especially during actions like childbirth or defecation?

Accepted Answer

Transversus abdominis

Study Guide: The Muscular System (Chapter 9) – Human Anatomy & Physiology

Study Guide - Practice Questions

Study Guide - Flashcards