joints between the bones of the skull or joints between the sacrum and the coccyx at the bottom of the spine
catilaginous joints - slightly movable
joints between bodies of adjacent veterbrae in the cervical, thoracic and part of the lumbar spine
synovial joints - freely moveable
joints between the bones of the arms and the legs
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key words
Axial - long axis of the body, includes bones of the skull, spine and rib cage, functions are to support and carry body parts
appendicular - bone sof the upper and lower lumbs and their girdles thats join to the axial skeleton
articulation - bones that form a joint
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synovial joints
featurestructurefunction
articular/hyaline cartilage - smooth carilage that is quite spongy and covers the ends of the bones at a joint - to prevent friction, absorb compression, protect bone ends form being crushed
two layered joint capsule - outer layer is tough and fibrous called fribrous capsule, inner layer is synovial membrane - strengthen joint so bones don't pull apart, to secrete synovial fluid
synovial fluid - slippery fluid like egg whites which is in the joint cavity - reduce friction between cartilage, to nourish cartilage, get rid of waste debris
ligament - band of strong fribrous tissue - connect bone to bone
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types of synovial joint
Ball and Socket - shoulder and hip - greatest range of movement
Hinge - elbow, knee and ankle - bending and straightening
pivot - radio ulna and atlas/axis joints - one bone roating about its axis
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