Vocabulary Ch 8

laurabockoff's version from 2016-12-02 11:10

Section 1

Question Answer
SynarthroticImmovable joints; found on axial skeleton
Jointswherever bones connect
AmphiarthroticCan be slightly movable; found on axial skeleton
Diathroticfreely movable joints; found in limbs
Fibrous jointsmade of fibrous connective tissue; Mobility depends on length of fibers

Section 2

Question Answer
Suturestype of fibrous joint; found only between bones of skull and forms protective enclosure for the brain. Completely immovable
Syndesmosisare fibrous joints containing slightly longer fibers. Allows for more "give". Ex) distal ends of tibia and fibula
Gomphosesa peg-in-socket fibrous joint. How teeth are embedded in their sockets
Cartilaginous jointscontaining cartilage. They are slightly movable to immovable
SychondrosesWhere hyaline cartilage connects bone. Ex) growth plates in children and ribs connecting to the sternum

Section 3

Question Answer
SymphesesWhere fibrocartilage connects bone to bone. Necessary in places of flexibility, and strength, and shock absorption. Ex) pubic symphysis and intervetebral discs
Synovial jointsusually freely movable. Bone ends separated by a joint cavity. Containing a synovial fluid
bursaea fluid-filled sac that cushion ligaments from sharp bone
Plane jointsonly slipping movements are allowed between bones; Ex) wrist joint (waving goodbye) this is nonaxial
Hinge JointsOnly allows movement in a single plane ex) phalanges or elbow joint. It is uniaxial

Section 4

Question Answer
Pivot jointsOnly allows movement in a single place. Ex) joint between axis and atlas (uniaxial)
Condyloid jointsallows movement in two planes. Allows you to bend fingers. Joint between metacarpals and proximal phalanges (biaxial)
Saddle Jointsallow greater degree of movement than Condyloid joints. Ex) joint between carpal and metacarpal #! allow you to twiddle thumbs. (biaxial)
Ball and socket jointsmost freely movable joints. Allows movement in multiple places (multiaxial) ex) joints at shoulder and hip

Section 5

Question Answer
dislocationwhen bone ends are forced out of their normal positions in a joint cavity
arthritisinflammation of the joints; synovial membrane thickens- fluid production decreases (friction increases). Causes painful stiffness
osteoporosis common form of arthritis; caused by the fraying of articular cartilage and increases friction between bone ends