Musculoskeletal System and Joint Function Quiz

Axial skeleton comprises the skull, vertebral column, and rib cage, excluding the scapula.

Ball-and-socket joints provide the greatest freedom of movement in all directions.

The musculoskeletal system supports movement, structure, protection, and blood cell production but is not involved in digestion.

The radius and ulna articulate via a pivot joint, allowing rotational movement.

The patella (kneecap) is a part of the appendicular skeleton, involved in knee joint movement.

Carpal bones articulate via gliding joints, allowing limited sliding movements in various directions.

The biceps brachii muscle contracts to flex the forearm.

Cartilage acts as a cushion between bones, reducing friction during movement.

Tendons connect muscles to bones, transmitting the force generated by muscle contraction.

The elbow is a synovial joint, characterized by a joint capsule filled with synovial fluid, enabling smooth movement.

The quadriceps femoris muscle group extends the knee joint, straightening the leg.

Synovial fluid lubricates joint surfaces, reducing friction and providing nourishment to cartilage.

Osteoporosis is marked by a decrease in bone mass and density, making bones brittle and prone to fracture.

Bursitis is the inflammation of a bursa, a fluid-filled sac that reduces friction between tissues.

A herniated intervertebral disc involves the nucleus pulposus protruding through the annulus fibrosus, often causing back pain and nerve compression.

Tenosynovitis involves inflammation of the synovial sheath surrounding a tendon, causing pain and swelling.

Synovitis is inflammation of the synovial membrane, causing joint pain, swelling, and stiffness.