5: Functional Movement: Mobility, Flexibility, and Stability

Which of the following best defines "range of motion"?

• The full motion possible in a joint.

• The strength of a muscle during movement.

• The speed at which a joint can move.

• The flexibility of connective tissue.

What is the primary function of joint capsules?

• To provide energy for muscle contraction.

• To surround major joints with semielastic connective tissue.

• To transmit nerve signals to the brain.

• To store calcium for bone health.

Which disorder is characterized by joint pain, stiffness, and inflammation, and includes osteoarthritis and rheumatoid arthritis?

• Osteoporosis

• Arthritis

• Tendonitis

• Scoliosis

What is the difference between elastic elongation and plastic elongation?

• Elastic elongation is permanent, while plastic elongation is temporary.

• Elastic elongation is temporary, while plastic elongation is a long-term change.

• Both are permanent changes in muscle length.

• Both are temporary changes in muscle length.

Which of the following best describes the role of an antagonist muscle?

• It initiates movement in a joint.

• It opposes the action of another muscle.

• It stores energy for muscle contraction.

• It provides nutrients to the joint.

A technique in which a muscle is slowly and gently stretched and then held in the stretched position is called:

• Dynamic stretching

• Ballistic stretching

• Static stretching

• Isometric stretching

Why is collagen important in connective tissue?

• It provides energy for muscle contraction.

• It makes connective tissue flexible.

• It provides structure and support in connective tissue.

• It transmits nerve signals.

Which condition is characterized by bones becoming extremely thin and brittle?

• Arthritis

• Osteoporosis

• Tendonitis

• Scoliosis

What is the function of a proprioceptor?

• To store calcium in bones.

• To send information about the muscular and skeletal systems to the nervous system.

• To provide energy for muscle contraction.

• To increase the flexibility of connective tissue.

Which of the following is a yellow fiber that makes connective tissue flexible?

• Collagen

• Elastin

• Proprioceptor

• Osteoblast