Which of the Following Structures Is Different from the Other

question 91

Multiple Choice

Which of the following structures is different from the other three?

• A) 1
• B) 2
• C) 3
• D) 4

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Definitions:

Humerus

The long bone in the upper arm that runs from the shoulder to the elbow, connecting with several muscles and joints.

Pectoralis Major

A large muscle in the upper chest that helps in the movement of the shoulder and arm.

Diaphragm

A large, dome-shaped muscle located at the base of the lungs and thoracic cavity, essential for the process of breathing.

External Intercostals

Muscles found between the ribs that aid in the mechanics of breathing by elevating the ribcage.