Question

fill in the blank question

the shoulder joint is mainly stabilized by the brachii muscle.

Explanation:

Identify the joint and stabilizing structures

The question asks for a specific muscle with "brachii" in its name that stabilizes the shoulder joint (Glenohumeral Joint).

Analyze the role of brachii muscles

There are two main muscles with "brachii" in their name: the biceps brachii and the triceps brachii.

Determine the primary stabilizer

The tendon of the long head of the biceps brachii runs through the intertubercular groove and over the head of the humerus, securing it against the glenoid cavity. This makes the biceps brachii a crucial anterior stabilizer of the shoulder joint.

Answer:

The shoulder joint is mainly stabilized by the <blank>biceps</blank> brachii muscle.