Question 1

Which of the following criteria is used in naming the muscle 'Biceps femoris'?

Accepted Answer

D. Number of origins (heads)

Question 2

A patient is unable to shrug their shoulders. Which muscle is most likely impaired?

Accepted Answer

A. Trapezius

Question 3

Which muscle is primarily responsible for the 'kissing' action?

Accepted Answer

B. Orbicularis oris

Question 4

A muscle that is named for its location and direction of fibers is the:

Accepted Answer

A. Rectus femoris

Question 5

Which muscle is the antagonist of the masseter during jaw opening?

Accepted Answer

C. Digastric

Question 6

A patient has difficulty flexing their forearm at the elbow. Which muscle is most likely affected?

Accepted Answer

A. Biceps brachii

Question 7

Which muscle group is responsible for plantar flexion of the foot?

Accepted Answer

B. Gastrocnemius and soleus

Question 8

A patient presents with an inability to extend their knee. Which muscle is most likely impaired?

Accepted Answer

A. Quadriceps femoris

Question 9

Which muscle is the primary mover for shoulder abduction?

Accepted Answer

A. Deltoid

Question 10

The muscle that forms the horizontal frown crease on the forehead is the:

Accepted Answer

A. Frontalis

Question 11

Which of the following muscles is NOT part of the hamstring group?

Accepted Answer

C. Rectus femoris

Question 12

A patient is unable to flex their fingers. Which muscle is most likely affected?

Accepted Answer

A. Flexor digitorum

Question 13

Which muscle is responsible for the action of raising the eyebrows?

Accepted Answer

A. Frontalis

Question 14

Which muscle is the antagonist of the gastrocnemius?

Accepted Answer

A. Tibialis anterior

Question 15

A patient is unable to close their eyes tightly. Which muscle is most likely affected?

Accepted Answer

A. Orbicularis oculi

Question 16

Which muscle is primarily responsible for flexion of the hip?

Accepted Answer

A. Iliopsoas

Question 17

A patient is unable to adduct their thigh. Which muscle group is most likely impaired?

Accepted Answer

A. Adductors

Question 18

Which muscle is the primary mover for extension of the forearm at the elbow?

Accepted Answer

A. Triceps brachii

Question 19

Which of the following muscles is commonly used for intramuscular injections in the gluteal region?

Accepted Answer

A. Gluteus medius

Question 20

A patient is unable to perform head flexion and rotation. Which muscle is most likely affected?

Accepted Answer

A. Sternocleidomastoid

Study Guide: Muscles of the Human Body – Anatomy & Physiology

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