Question 1

Which muscle is highlighted in orange in the second image, and what is its primary function?

Accepted Answer

Temporalis; elevates and retracts the mandible

Question 2

A patient presents with difficulty closing their mouth tightly. Which muscle, shown highlighted in the third image, is most likely weakened?

Accepted Answer

Masseter

Question 3

Which muscle, highlighted in the fourth image, is responsible for puckering the lips as in whistling?

Accepted Answer

Orbicularis oris

Question 4

Damage to which muscle, highlighted in the fifth image, would most likely result in an inability to close the eyelids tightly?

Accepted Answer

Orbicularis oculi

Question 5

A patient has a drooping lower lip and difficulty protruding the chin. Which muscle, highlighted in the sixth image, is most likely affected?

Accepted Answer

Mentalis

Question 6

Which muscle, highlighted in the seventh image, is responsible for rotating and flexing the neck?

Accepted Answer

Sternocleidomastoid

Question 7

The muscle highlighted in the eighth image is involved in raising the eyebrows and wrinkling the forehead. What is its name?

Accepted Answer

Occipitofrontalis

Question 8

Which muscle, highlighted in the ninth image, is responsible for compressing the cheek during chewing and blowing?

Accepted Answer

Buccinator

Question 9

A patient is unable to flare their nostrils. Which muscle, highlighted in the tenth image, is most likely paralyzed?

Accepted Answer

Nasalis

Question 10

Which muscle, highlighted in the fourteenth image, is responsible for elevating, retracting, and rotating the scapula?

Accepted Answer

Trapezius

Question 11

A weightlifter experiences pain when abducting the arm at the shoulder. Which muscle, highlighted in the fifteenth image, is most likely involved?

Accepted Answer

Deltoid

Question 12

Which muscle, highlighted in the thirteenth image, is primarily responsible for extending the forearm at the elbow?

Accepted Answer

Triceps brachii

Question 13

A patient has difficulty retracting the scapula and extending the arm at the shoulder. Which muscle, highlighted in the twelfth image, is most likely affected?

Accepted Answer

Latissimus dorsi

Question 14

Which muscle, highlighted in the sixteenth image, is responsible for elevating the scapula?

Accepted Answer

Levator scapulae

Question 15

A patient presents with difficulty flexing the forearm at the elbow. Which muscle, highlighted in the eighteenth image, is most likely weakened?

Accepted Answer

Biceps brachii

Question 16

Which muscle, highlighted in the nineteenth image, is responsible for flexing the arm at the shoulder and adducting it?

Accepted Answer

Pectoralis major

Question 17

A patient is unable to compress their abdomen effectively. Which muscle, found in the abdominal wall, is most likely affected?

Accepted Answer

Transverse abdominis

Question 18

Which muscle, highlighted in the twenty-first image, is responsible for flexing the thigh at the hip and is the longest muscle in the human body?

Accepted Answer

Sartorius

Question 19

A runner complains of pain in the back of the thigh and difficulty flexing the knee. Which muscle group is most likely involved?

Accepted Answer

Hamstrings (including biceps femoris, semitendinosus, semimembranosus)

Question 20

Which muscle, highlighted in the twenty-fourth image, is responsible for plantar flexion of the foot at the ankle joint?

Accepted Answer

Gastrocnemius

Study Guide: Major Muscles of the Head, Neck, and Upper Torso

Guida di studio - Domande di pratica

Study guide - Flashcard