This system supports the skeletal system.

This system supports the skeletal system.

• A. Circulatory
• B. Digestive
• C. Endocrine
• D. Muscular

Answer: (D)

The muscular system is responsible for moving and stabilizing the skeleton. Muscles attach to bones with tendons and, when they contract, pull on the bones to produce movement. This same contraction also helps hold the body upright and stabilize joints, keeping the skeletal framework supported during activity and at rest. For example, bending the elbow involves the biceps contracting to bring the forearm up, while the back and abdominal muscles help maintain posture and spine alignment. Other systems, like circulatory, digestive, or endocrine, support overall health and energy but do not directly provide the mechanical support and movement that the muscular system supplies to the skeleton.

The muscular system is responsible for moving and stabilizing the skeleton. Muscles attach to bones with tendons and, when they contract, pull on the bones to produce movement. This same contraction also helps hold the body upright and stabilize joints, keeping the skeletal framework supported during activity and at rest. For example, bending the elbow involves the biceps contracting to bring the forearm up, while the back and abdominal muscles help maintain posture and spine alignment. Other systems, like circulatory, digestive, or endocrine, support overall health and energy but do not directly provide the mechanical support and movement that the muscular system supplies to the skeleton.