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gliding,angular,rotation

wut are the 3 types of mvmt?

gliding

1 flat bone slips ovr another

angular

changes the angles of the levers

rotation

rotates on axis.ie=atlas nd axis

flexion,extension,hyperextension,dorsiflexion,abduction,adduction,circumduction

wut are types of angular mvmts?

flexion

dec in angle;2 bones become closer

extension

inc the angle

hyperextension

beyond 180

dorsiflexion

toes up

plantar flexion

toes down

abduction

moving away from midline

adduction

towards bod

circumduction

draw a circle

supination,pronation,inversion,eversion,elevation,depression,oppositional

wut are the special mvmts?

supination

palm up

pronation

palm down

inversion

sole of ft turns medially(kick w/ inside of ft in soccer)

eversion

sole of ft turns laterally (2nd pos in ballet)

elevation

lift body

depression

bring down

oppositional

ok sign w/ thumbs

plane,hinge,pivot,condyloid,saddle joint,ball nd socket

wut are the types of joints?

plane

flat surfaces.ie-intercarpals,gliding mvmt

hinge

flexion nd extension (uniaxial).ie-phalanges nd elbow

pivot

atlas/axis.nd radioulnar

condyloid

all mvmts,2 oval ends (convex nd concave)

saddle joint

similar to condyloid (thumb)

ball nd socket

all mvmt (multiaxial).ie-shoulder nd hips

joint

sites where 2 + bones meet

synarthroses

wut functional joint class contains least mobile joints

fibrous joints

sutures

syndesmoses

fibres of lig-like interosseous membrane connecting radius nd ulna

gomphoses

peg in socket fibrous joint

cartilaginous joints

articulating bones by cartilage,lcks joint cavs

synchondroses

common type of cart joints.plate of hyaline cartilage unites bone.ie=epiphyseal plate

symphyses

artic surfaces of bones are covered w/ articular cart,acts as shock abosrbers nd has strength nd flexibility.ie=intervertebral joints

artic cart,joint cav,rtic capsule,synovial fluid,reinforcing lig

5 structural characterisitcs of synovial joints

artic cartilage

absorbs compression placed on joint nd keep bone ends from being crushes

joint cav

is potential space containing small amt of synovial fluid

artic capsule

made of dense irreg ct thts cont w/ periosteum of artic bones.external layer

synovial fluid

occupies all free spaces w/in joint cap.derived by filtration from blood flowing thru cappilaries in synovial mem

reinforcing lig

has intrinsic lig,which thickens parts of fibrous cap

bursae

flattened fibrous sacs lined w/ synovial mem nd contains thin film of synovial fluid

tendon sheaths

elongated bursa wrpped around tendon subjected to friction

shape of artic surface,ligs,muscle tone

3 natural factors tht stabilize synovial joints

nonaxial,gliding,angular,rotation

4 major mvmts tht synovial joints allow

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