Block #1 - Joints and Bony Structures

what are the 3 uniaxial joints

• plane/gliding joint

• hinge joint

• pivot joint

what are the 2 biaxial joints

• condylar joint

• saddle joint

what is the multiaxial joint

ball and socket

what actions does a hinge joint perform

flexion and extensionw

what actions does a plane joint perform

gliding

what action does a pivot joint perform

rotation

pronation

supination

what action does a condylar joint perform

flexion/extension

abduction/adduction

circumduction

what action does a saddle joint perform

flexion/extension

abduction/adduction

circumduction

opposition

what action does a ball and socket joint perform

flexion/extension

abduction/adduction

circumduction

internal/external rotation

sternocostal joints

• synovial joints (all except for 1st rib)

• cartilaginous/synchondrosis (1st rib)

ribs 8-10 form ——- articulation

with adjacent costal cartilages

what type of joint: glenohumeral

ball and socket

what type of joint: acromioclavicular

plane

what type of joint: sternoclavicular

saddle

what type of joint: elbow

hinge

what type of joint: radioulnar joint

pivot

what type of joint: radiocarpal joint

condylar

interosseous membrane is what tissue type

fibrous tissue

what type of joint: intercarpal joint

plane

what type of joint: carpometacarpal joint

thumb: saddle

digits 2-5: plane

what type of joint: metacarpophalangeal joint

condylar

proximal and distal interphalangeal joints

hinge

two parts of intervertebral disc

annulus fibrosus (collage) and nucleus pulposus (gel)

function of intervertebral disc

absorb shock, movement between vertebrae

intervertebral joint between vertebral bodies type

cartilaginous

intervertebral joint between articular facets type

synovial

atlantoaxial joint type

pivot

atlantooccipital joint type

hinge

action of atlanto axial joint

rotation of the head

action of the atlanto-occipital joint

flexion and extension of the head

what is articulating in the atlanto-occipital joint

occipital condyles of the occipital bone and the superior articular facets of the atlas

what is articulating in the atlanto-axial joint

the anterior arch of the atlas and the dens of the axis