Question

Name one example for each:

a) Elbow Flexor
b) Elbow Extensor
c) Pronator
d) Supinator

Answer 1

An example of an elbow flexor is the biceps brachii; an elbow extensor is the triceps brachii; a pronator is the pronator teres; and the sole supinator is the muscle named supinator. These muscles enable the forearm to perform flexion, extension, pronation, and supination movements.

Step-by-step explanation:

The forearm is involved in various movements: flexion, extension, pronation, and supination. Given the actions of key muscles, you can identify one example for each required category:

• Elbow Flexor: The biceps brachii is a prime example of an elbow flexor. This muscle allows for the flexing of the forearm at the elbow joint.
• Elbow Extensor: The triceps brachii serves as an elbow extensor, facilitating the straightening of the arm.
• Pronator: The pronator teres is one muscle that performs the action of pronation, rotating the forearm to face posteriorly.
• Supinator: As for supination, the muscle responsible for turning the forearm anteriorly (palm-up position) is the supinator.