Question

Ceiling punches with elbow extended (performed with scapular protraction) are made possible by which muscle? (If this muscle is weak, you may see scapular winging)

a) Deltoid
b) Trapezius
c) Rhomboid
d) Serratus anterior

Answer 1

The triceps brachii muscle is responsible for extending the forearm, while the serratus anterior is involved in scapular stabilization and winging.

Step-by-step explanation:

The muscle responsible for extending the forearm is the triceps brachii. This muscle is located on the back of the upper arm and is primarily involved in the extension of the elbow joint. The deltoid is the main abductor of the arm but is not responsible for forearm extension.

The serratus anterior is a muscle that helps protraction and stabilization of the scapula and can lead to scapular winging if it's weak. However, it's not involved in the extension of the forearm.