Joint Types and Functions

The video tutorial explains the roles of ligaments and tendons as connective tissues, connecting bones and muscles. It describes various joint types, including synarthrosis, amphiarthrosis, and synovial joints, highlighting their characteristics and examples. Synovial joints, such as ball-and-socket and hinge joints, are detailed, emphasizing their lubrication by synovial fluid. The video also covers articular cartilage, its avascular nature, and the impact of arthritis, which leads to joint inflammation and cartilage damage.

What is the primary function of ligaments in the body?

• To produce synovial fluid

• To provide nutrients to tissues

• To connect muscles to bones

• To connect bones to other bones

Where are synarthrosis joints typically found?

• In the vertebral column

• In the shoulders

• In the skull

• In the knees

What type of joint is characterized by being slightly movable?

• Amphiarthrosis

• Diarthrosis

• Ball-and-socket

• Synarthrosis

Which of the following is an example of a ball-and-socket joint?

• Elbow

• Knee

• Hip

• Skull

What is the main characteristic of a hinge joint?

• It allows movement in multiple planes

• It is immovable

• It allows movement in one plane

• It is slightly movable

What fluid lubricates synovial joints?

• Cerebrospinal fluid

• Synovial fluid

• Blood plasma

• Lymphatic fluid

What type of cartilage lines the surfaces of bones in a joint?

• Costal cartilage

• Articular cartilage

• Fibrocartilage

• Elastic cartilage

What is a common consequence of joint overuse?

• Arthritis

• Bone fusion

• Muscle hypertrophy

• Increased flexibility

What does the term 'arthritis' refer to?

• Muscle contraction

• Bone growth

• Tendon rupture

• Joint inflammation

Why does articular cartilage have difficulty healing?

• It is highly vascular

• It lacks blood vessels

• It is constantly moving

• It is too dense