Question

What are deltoid muscles?

• A. These are triangular muscles covering the shoulder joint
• B. These are triangular muscle covering the vertebrae
• C. These are muscle covering the rib cage
• D. None of the choice

Answer 1

The correct option is A

These are triangular muscles covering the shoulder joint

Deltoid is a large triangular muscle covering the shoulder joint and serving to abduct and flex and extend and rotate the arm. The deltoid has three distinct functions that correspond to the three bands of muscle fibers and is constructed with three main sets of fibers: anterior, middle, and posterior.