Question 1

Which muscle is primarily responsible for quiet inspiration during normal breathing?

Accepted Answer

Diaphragm

Question 2

During forced expiration, which of the following muscles is NOT typically involved?

Accepted Answer

External intercostals

Question 3

A patient is unable to flex their trunk forward. Which muscle is most likely impaired?

Accepted Answer

Rectus abdominis

Question 4

Which muscle is a superficial muscle of the back and is responsible for elevating the scapula?

Accepted Answer

Levator scapulae

Question 5

If the external intercostals are paralyzed, which function would be most affected?

Accepted Answer

Quiet inspiration

Question 6

Which muscle is involved in both forced inspiration and forced expiration?

Accepted Answer

Diaphragm

Question 7

A patient presents with difficulty rotating their trunk to the opposite side. Which muscle is most likely affected?

Accepted Answer

External abdominal oblique

Question 8

Which of the following muscles is NOT considered a muscle of the deep back?

Accepted Answer

Trapezius

Question 9

Which muscle is most important for increasing intra-abdominal pressure during activities such as lifting heavy objects?

Accepted Answer

Transversus abdominis

Question 10

During forced inspiration, which muscle helps elevate the ribs?

Accepted Answer

Sternocleidomastoid

Question 11

Which muscle is responsible for compressing the abdominal contents and stabilizing the lumbar spine?

Accepted Answer

Transversus abdominis

Question 12

A patient with injury to the erector spinae muscle group would most likely have difficulty with which movement?

Accepted Answer

Extending the vertebral column

Question 13

Which muscle is a major accessory muscle of forced inspiration and is located in the neck?

Accepted Answer

Sternocleidomastoid

Question 14

Which muscle is NOT involved in forced expiration?

Accepted Answer

External intercostals

Question 15

Which muscle is most important for stabilizing the scapula during upper limb movement?

Accepted Answer

Rhomboids

Question 16

If a person has difficulty with lateral flexion of the trunk, which muscle is most likely affected?

Accepted Answer

External abdominal oblique

Question 17

Which muscle is responsible for forced expiration by depressing the ribs?

Accepted Answer

Internal intercostals

Question 18

Which muscle is a superficial muscle of the back and is involved in moving the upper limb?

Accepted Answer

Trapezius

Question 19

Which muscle is most important for maintaining posture and resisting gravity in the upright position?

Accepted Answer

Erector spinae

Question 20

A patient with weakness in the rhomboids would most likely have difficulty with which movement?

Accepted Answer

Retracting the scapula

Muscles of the Abdominal Wall, Breathing, and Back: Lab Practical Review

스터디 가이드 - 연습 문제