10 - Muscles: Scapula and Arm ID

Front

What is the function of the pectoralis minor muscle?

Back

The pectoralis minor muscle stabilizes the scapula by drawing it anteriorly and inferiorly against the thoracic wall.

Front

Identify the muscle responsible for arm abduction at the shoulder joint.

Back

The supraspinatus muscle initiates arm abduction.

Front

What is the primary action of the latissimus dorsi muscle?

Back

The latissimus dorsi muscle is responsible for extension, adduction, and medial rotation of the shoulder joint.

Front

Which muscle is located below the supraspinatus and is involved in external rotation of the arm?

Back

The infraspinatus muscle.

Front

What is the role of the teres minor muscle?

Back

The teres minor muscle assists in the external rotation of the arm and helps stabilize the shoulder joint.

Front

Define the term 'levator scapulae'.

Back

The levator scapulae is a muscle that elevates the scapula and assists in its downward rotation.

Front

What is the anatomical location of the deltoid muscle?

Back

The deltoid muscle is located on the shoulder and is shaped like an inverted triangle.

Front

Explain the significance of the serratus anterior muscle.

Back

The serratus anterior muscle is crucial for the protraction and upward rotation of the scapula, allowing for full arm elevation.

Front

What is the primary function of the rotator cuff muscles?

Back

The rotator cuff muscles stabilize the shoulder joint and allow for a wide range of shoulder movements.

Front

Identify the muscle that is primarily responsible for flexing the arm at the elbow joint.

Back

The biceps brachii muscle.