What is the difference between an elbow and a knee

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You agree that we have no liability for any damages. They have the following traits: Hyaline cartilage encloses the articular surfaces.

The cartilage structures have slippery surfaces for free mobility Connecting the articular surfaces is a combined cavity packed with synovial fluid. This cavity might be partly or totally divided up by a meniscus known as articular disk The joints are enclosed by an articular container which is tough in the environment and is wrinkled by the synovial membrane. There are two kinds of joints: Hinge joints—The articular surfaces form a pulley mechanism in these joints.

Summary: Hyaline cartilage encloses the articular surfaces. T Author Recent Posts. Latest posts by golden see all. Help us improve. Rate this post! Cancel Reply. Follow Us. The joint capsule is a fluid filled sac that surrounds and lubricates the joint. The important ligaments of the elbow are the medial collateral ligament on the inside of the elbow and the lateral collateral ligament on the outside of the elbow.

Together these ligaments provide the main source of stability for the elbow, holding the humerus and the ulna tightly together. A third ligament, the annular ligament, holds the radial head tight against the ulna. There are tendons in your elbow that attach muscle to bone. The important tendons of the elbow are the biceps tendon, which is attached the biceps muscle on the front of your arm, and the triceps tendon, which attaches the triceps muscle on the back of your arm.

Four important synovial joints used in most sporting actions are the elbow and shoulder joints in the arm, and the knee and hip joints in the leg. The elbow and knee joints are both hinge joints. A hinge joint is a type of synovial joint that works like the hinge on a door, allowing bending and straightening only. The shoulder and hip joints are both ball and socket joints. A ball and socket joint is a type of synovial joint that allows movement in almost every direction.

A ball and socket joint is made up of a round end of one bone that fits into a small cup-like area of another bone.