HINGEJOINT Meaning and
Definition
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A hinge joint refers to a type of synovial joint that enables movement in primarily one plane, resembling the operation of a hinge. It is formed when the convex surface of a bone fits into the concave surface of another bone, allowing flexion and extension motions like that of a door hinge. This joint provides stability while ensuring limited rotation of the bones involved.
The hinge joint is found in various parts of the body, most notably in the elbow and knee. In the elbow, it involves the trochlea of the humerus fitting into the trochlear notch of the ulna, allowing for the bending and straightening of the forearm. In the knee, the femur rests on the tibial plateau, forming the hinge-like motion between the femur and tibia.
Characteristics of a hinge joint include limited movement in comparison to other types of joints, the absence of rotation, and the presence of articular cartilage that provides cushioning and reduces friction during movement. Ligaments often surround these joints for added stability and reinforcement.
Hinge joints play a crucial role in facilitating various day-to-day activities involving flexion and extension, such as walking, running, grasping, and lifting. Their involvement in pivotal movements highlights their significance in bodily functions, making them an integral part of the musculoskeletal system.
Common Misspellings for HINGEJOINT
- hinge joing
- hinged joint
- hinge jont
- hinge joint
- hinge joynt
- Hingejoints
Etymology of HINGEJOINT
The word "hingejoint" is a compound noun formed by combining the words "hinge" and "joint". Each of these words has its own etymology:
1. Hinge: The term "hinge" dates back to the 14th century and comes from the Middle English word "henge" or "hengen", which means "to hang" or "to suspend". It later evolved to specifically refer to the metal or movable device that allows a door or gate to swing back and forth.
2. Joint: The word "joint" is derived from the Old French word "joint", meaning "a joining or union". It originated from the Latin word "junctus", which is the past participle of "jungere", meaning "to join" or "to unite".
