Question

State the functions of muscles.​

Answer 1

Answer:

Introduction to the Muscular System

The muscular system is composed of specialized cells called muscle fibers. Their predominant function is contractibility. Muscles, attached to bones or internal organs and blood vessels, are responsible for movement. Nearly all movement in the body is the result of muscle contraction. Exceptions to this are the action of cilia, the flagellum on sperm cells, and amoeboid movement of some white blood cells.

The integrated action of joints, bones, and skeletal muscles produces obvious movements such as walking and running. Skeletal muscles also produce more subtle movements that result in various facial expressions, eye movements, and respiration.

Answer 2

1.Movement-

• Skeletal muscles pull on the bones causing movements at the joints.
• Skeletal muscles pull on the soft tissues of the face causing facial expressions.
• Movement caused by the respiratory muscles enables breathing.

2. Support-

• Muscles of the body wall support the internal organs.
• As these muscles lose their tone, the internal organs of the abdominal-pelvic cavity may bulge outward as seen in some individuals as they age.

3. Protection-

• Skeletal muscles, particularly of tcushion the body's internal organs (abdominal cavity) from force applied to the exterior of the body.he body wall,