Bone and Joints Test Retake

Front

What is the function of articular cartilage in joints?

Back

Articular cartilage provides a smooth, lubricated surface for joint movement and acts as a cushion to absorb shock.

Front

Define syndesmoses and provide an example.

Back

Syndesmoses are a type of fibrous joint where two bones are connected by dense connective tissue, allowing for limited movement. An example is the joint between the distal ends of the tibia and fibula.

Front

What are lamellae in the context of bone structure?

Back

Lamellae are thin layers of bone matrix that form the structural units of compact bone, providing strength and support.

Front

What type of joint is characterized by a saddle shape?

Back

A saddle joint allows for movement in two planes and is exemplified by the carpometacarpal joint of the thumb.

Front

What is the proximal epiphysis of a long bone?

Back

The proximal epiphysis is the end of a long bone that is closest to the body's trunk, often involved in joint formation.

Front

What are the main types of joints in the human body?

Back

The main types of joints are fibrous, cartilaginous, and synovial joints.

Front

Explain the role of ligaments in joints.

Back

Ligaments are strong bands of connective tissue that connect bones to other bones, providing stability and support to joints.

Front

What is the difference between synovial and non-synovial joints?

Back

Synovial joints are freely movable and contain a fluid-filled joint cavity, while non-synovial joints are either immovable or allow limited movement.

Front

Describe the structure and function of synovial fluid.

Back

Synovial fluid is a viscous fluid found in the joint cavity that lubricates the joint, reduces friction, and nourishes the cartilage.

Front

What is the significance of the epiphyseal plate in long bones?

Back

The epiphyseal plate, or growth plate, is a layer of cartilage that allows for the lengthening of bones during growth.