Answer to Question #124679 in Biology for Dan

Question #124679
Please describe what each of these bones are and do.
fixed joint, pivot joint, synovial joint, ball and socket joints and hinge joint

Thank you.
1
Expert's answer
2020-07-03T08:10:20-0400

Fixed joint are joints that provide stability to certain bones and parts of the body. They include the bones of the skull and pelvis.

The pivot joint is a freely moveable joint providing rotary movements around a single axis, the joint between C1 and C2 vertebrates.

Ball and socket joints are characterized by the highest freedom of motion comprising flexion-extension, circumduction, and abduction-adduction, for instance, hip joint.

Hinge joint consists of two or three bones surfaces and allows bones to move in one direction (back and forth). The example is the elbow joint.


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