Question

Define any two joints​

Answer 1

Answer:

. A hinge joint is a type of synovial joint that exists in the body and serves to allow motion primarily in one plane. The hinge joint is made up of two or more bones with articular surfaces that are covered by hyaline cartilage and lubricated by synovial fluid

Pivot joint, also called rotary joint, or trochoid joint, in vertebrate anatomy, a freely moveable joint (diarthrosis) that allows only rotary movement around a single axis. The moving bone rotates within a ring that is formed from a second bone and adjoining ligament.

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