joints

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Articular Cartilage

Hyaline cartilage covers the opposing bone surfaces and the main function is to absorb compression.

Bursae

Purse" are flattened fibrous sacs lined with synovial membrane and containing a thin film of synovial fluid, occuring where bones rub together.

Synovial

The most abundant joint type in the body, opposing bones separated by fluid filled cavity. Classified as Diathrotic (Free movements)

Symphysis

Amphiarthrotic -Slightly movable articular surfaces seperated by thin layers of hyaline cartilage that is attached to a pad of fibrocartilage. vertebral joints

Synchondrosis

Synarthrotic(immovable) bones united by bands of hyaline cartilage. joint between epiphysis & diaphysis

Cartilaginous Joints

Articulating bones connected by hyaline cartilage or fibrocartilage.

Gomphosis

Cone shaped process fastened in bony socket by peridontal ligament Synarthrotic (immovable)

Diarthroses

Freely movable (synovial) joints.
hinge plane saddle ball & socket pivot condylar
elbow carpal trapezium hip vertebrae phalanx

Sutures

Literally "seams," only occur between bones of the skull. Synarthrotic

Joints (articulations)

The sites where two or more bones meet.

Ampiarthroses

Slightly movable joints

Synarthroses

Are immovable joints

condylar (condor)
phalanx metacarpal

plane joint
carpals

hinge joint
humerus radius ulna

saddle joint
1st metacarpal trapezium

ball & socket joint
femur/ head of femur/ hip

pivot joint
Dens / transverse ligament / axis / atlas

Syndesmosis

This is a slightly movable (Ampiarthrotic) articulation where the contiguous bony surfaces are united by an interosseous ligament, as in the inferior tibiofibular articulation.

synovial (diarthrotic)

articulating ends of bones surrounded by a joint capsule
articular bone ends covered by hyaline cartilage and seperated by synovial fluid

Condylar

Condylar joints do not rotate

plane

joints between various bones of the wrist and ankle

pivot

Cylindrical surface articulates with ring of bone and ligament

saddle

articulating surfaces have "both" concave and convex regions / surface of one bone fits the complimentary surface of another in "two planes". trapezium

ball & socket

allows for movements in all planes includes rotation

hinge

a concave surface of one bone fits into the convex surface of another allows flexation and extension

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