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What is the primary function of ligaments?
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To connect bones to other bones.
What are the characteristics of synovial joints?
Synovial joints are lubricated by synovial fluid and are surrounded by a synovial capsule.
What effect does arthritis have on articular cartilage?
Arthritis leads to the destruction of articular cartilage.
Describe synarthroses joints and provide an example.
Synarthroses are immovable joints, such as the fused bones of the skull in adults.
What are amphiarthroses joints and where are they commonly found?
Amphiarthroses are slightly movable joints, commonly found in the vertebral column.
Why is articular cartilage avascular and what implication does this have for healing?
Articular cartilage is avascular, meaning it lacks blood vessels, which makes it hard to heal if damaged due to the limited supply of nutrients.
Define arthritis and mention two possible causes.
Arthritis is the inflammation of joints, which can be caused by overuse or infection.
Define a joint in the context of the human body.
A joint is the point where one bone articulates or meets with another bone.
What type of joint is the knee and what makes it functional for its movement?
The knee is a hinge joint, allowing for movement similar to the opening and closing of a door.
What is the role of tendons in the body?
Tendons connect muscles to bones.
List two types of synovial (diarthroses) joints and give an example of each.
Ball and Socket (e.g., shoulders, hips) and Hinge (e.g., elbows, knees).
What is articular cartilage and what is it made of?
Articular cartilage is the smooth cartilage lining bone surfaces in joints and is composed of hyaline cartilage.
How do synovial joints differ from synarthroses and amphiarthroses?
Synovial joints are freely movable and lubricated by synovial fluid, while synarthroses are immovable and amphiarthroses are slightly movable.
Explain why damage to articular cartilage is particularly problematic.
Damage to articular cartilage is problematic because it is avascular, making healing difficult due to the lack of nutrient supply.
What are the common symptoms of arthritis?
Pain and stiffness are common symptoms of arthritis.
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