Question

Pectoralis minor, serratus anterior, and the rhomboids connect the scapula to bones on the axial skeleton. Would the loss of function of these muscles have any effect on the function of the deltoid or rotator cuff muscles, which act on the arm? Explain.

Answer 1

The loss of function in the pectoralis minor, serratus anterior, and rhomboids would impair the deltoid and rotator cuff muscles by destabilizing the scapula, leading to reduced arm movement efficiency.

Step-by-step explanation:

The loss of function of the muscles that connect the scapula to the bones of the axial skeleton, such as the pectoralis minor, serratus anterior, and the rhomboids, would indeed affect the function of the deltoid and rotator cuff muscles. These muscles are responsible for positioning and stabilizing the pectoral girdle, which includes the scapula. The pectoralis minor and serratus anterior are anterior thoracic muscles, while the rhomboids are posterior thoracic muscles.

The muscles that move the humerus, like the deltoid and rotator cuff, originate on the scapula. For these muscles to effectively move the arm, a stable base at the shoulder is essential. If the positioning muscles are compromised, the scapula would not be securely anchored, leading to diminished strength, range of motion, and stability of the entire shoulder complex, which would impair the function of the muscles acting on the arm.

Answer 2

The interpretation including its given problem is outlined in the following section on either the interpretation.

Step-by-step explanation:

Pectoralis significant, anterior serratus, rhomboids lose certain movements that contribute to more mechanisms affecting the arm.

Pectoralis minor:

• Scapula without the pass.
• No Lower formation.

Anterior Serratus:

• No grab scapula.
• Does not deliberately touch as well as push.

Rhomboids:

• No downwards spin.
• No scapula acceleration.