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Joints

place where two bones meet. bone to bone. articular

synovial or diarthrosis joints

move freely- allow us to move. knee, shoulder, ankle- 6 sub classes

fibrous or synarthrosis joints

immoveable- fiberous- teeth and skull

cartilaginous or amphiarthrosis joints

sligtly movable- disk in cartilage

pivot a ring

movement rotation - uni axial or 1 degree of freedom- the neck

ball and socket enarthrodial spheroidal

movement in 3 cardinal plans - shoulder joint

hinge

allows the joint to bend and straighten but not rotate -elbow joint

ellipsoid

a less flexible version fo the ball and socket joint movement allows flexion and extension abduction adduction and circmduction- wrist joint

saddle

fit together to allow all movements except rotation the thumb joint

gliding

two generaly flat surfaces fliding over each other- the joints between the tarsals of the foot.

the 6 types of synovial joints

pivot a ring, ball and socket, hinge, ellipsoid, saddle, gliding

3 types of cartilage

hyaline cartilage, articular cartilage, white fibrocartilage

hyaline cartilage

wmooth with shiny physical properities of glye like substance

articular cartilage

lines the articular smooth surfaces of the bones allowing for efficient smooth movement

white fibrocartilage

strong fibros tissue saturated with the flue like cartilage that gives it a veru strong tendon like property

ligaments

bone to bone

tendons

bone to muscle

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