Hip joint
Hip Joint
The Hip Joint (pronunciation: /hɪp dʒɔɪnt/) is a ball-and-socket type joint that connects the pelvis to the femur, the longest bone in the human body. The term "hip joint" is derived from the Old English word "hipe" or "hippa," meaning "hip," and the Latin word "iunctus," meaning "join together."
Anatomy
The hip joint is made up of two main parts: the acetabulum, a deep, cup-shaped structure on the side of the pelvis, and the femoral head, a ball-shaped structure at the top of the femur. The acetabulum and the femoral head fit together to form a stable, mobile joint. The hip joint is surrounded by strong ligaments and muscles that provide stability and allow for movement.
Function
The primary function of the hip joint is to support the weight of the body in both static (e.g. standing) and dynamic (e.g. walking or running) postures. It allows for a wide range of motion, including flexion, extension, abduction, adduction, internal rotation, and external rotation.
Related Terms
- Arthritis: A condition that causes inflammation and pain in the joints, including the hip joint.
- Hip Replacement: A surgical procedure in which a damaged hip joint is replaced with an artificial one.
- Hip Dysplasia: A condition in which the hip joint is abnormally formed, often leading to arthritis.
- Hip Fracture: A break in the upper part of the femur near the hip joint.
Etymology
The term "hip" comes from the Old English "hipe" or "hippa," which means "hip" or "haunch." The term "joint" comes from the Latin "iunctus," which means "join together" or "connect."
External links
- Medical encyclopedia article on Hip joint
- Wikipedia's article - Hip joint
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