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Anterior and Posterior Arm Muscles Quiz

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Questions and Answers

What is the function of the Deltoid (anterior)?

Flexes arm (correct)

Abducts arm at shoulder (correct)

Flexes forearm

Extends arm

What is the function of the Brachialis?

Flexes forearm

What is the function of the Biceps brachii?

Flexes forearm

What is the function of the Brachioradialis?

Flexes forearm Signup and view all the answers

What is the function of the Deltoid (posterior)?

Extends arm Signup and view all the answers

What are the functions of the Triceps brachii?

Extends arm Signup and view all the answers

Study Notes

Anterior Arm Muscles

Deltoid (anterior): Responsible for arm abduction at the shoulder and flexion of the arm.
Brachialis: Primarily flexes the forearm at the elbow.
Biceps brachii: Also assists in flexing the forearm; crucial for forearm supination.
Brachioradialis: Flexes the forearm; particularly active during rapid movements or heavy lifting.

Posterior Arm Muscles

Deltoid (posterior): Functions to extend the arm at the shoulder.
Triceps brachii: Abducts the arm at the shoulder and extends the arm, crucial for pushing movements.

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Description

Test your knowledge on the anatomy and functions of the anterior and posterior arm muscles. This quiz covers key muscles such as the deltoid, biceps brachii, and triceps brachii, focusing on their roles in arm movement and flexion. Perfect for students of anatomy and physiology!