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Details

joints
joint types and functions
28
Anatomy
Undergraduate 2
04/07/2010

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Term
arthology
Definition
study of joints
Term
articulation
Definition
point of contact between
bones
bone and cartilage
teeth and bones
Term
loose joints
Definition
greater movement
Term
tight joints
Definition
greater strength
Term
fibrous joint or synarthroidal joint
Definition
no joint cavity
allows little or no movement
fibrous connective tissue holds bone together.
Term
suture
Definition
bones held together by dense connective tissue
immovable joint
between skull bones
Term
gomphosis
Definition
bone or nail (peg fitting) into a socket
teeth(roots)
synarthrotic
Term
ligament
Definition
dense regular connective tissue that attaches bone to bone
Term
syndesmosis
Definition
more space and more fibrous connective tissues then a suture
allows more flexability and movement
anterior tibiofibular liagament(distal)
also between ulna and radius
Term
cartilaginous joint
Definition
no joint cavity
cartilage holds bones together
allows little or no movement
in vertebrae
Term
synchondrosis
Definition
composed of hyaline cartilage
synarthrotic
temporary;replaces by bone
epiphyseal plate in growing bone
Term
symphysis
Definition
broad, flat disc of fibrocartilage connects bones
amphiarthrotic
pubic symphysis
Term
diarthrosis
Definition
freely moveable
Term
gliding joint
Definition
intercarpal, intertarsal allows side to side back and forth movements
Term
hinge joint
Definition
fits into a concave surface
allows angular, monaxial movement
Term
flexion
Definition
decreasing angle between articulating bones
Term
extension
Definition
increasing angle between articulating bones
Term
hyperextension
Definition
increased extension beyone anatomical position
knee, elbow, ankle, interphalangeal (fingers)
Term
pivot joint
Definition
rounded surface with in ring of bone and ligament
allows rotation
Term
medial rotation
Definition
anterior surface of bone to midline
atlas on dens of axis
proximal ends of ulna and radius
Term
lateral rotation
Definition
ant surface of
bone away from midline
Term
ellipsoidal joint
Definition
oval shaped condyle into elliptical cavity
allows biaxal movement
wrist between raidus and carpals
Term
saddle joint
Definition
allows circumduction between trapezium and thumb metacarpal
Term
ball and socket joint
Definition
shoulder and hip joints
allows multiaxal movement
flexion, extenion
adduction, abduction
rotation
Term
inversion
Definition
soles of feet face each other
Term
exversion
Definition
soles of feet face away from each other
Term
dorsiflexion
Definition
tilting foot up
Term
plantar flexion
Definition
pointing feet down
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