synovial joints and movements cfa

joints (articulations)

where 2 bones meet and movement occurs

synarthroses

immovable

amphiarthrosis

slightly moveable

diarthrosis

freely moveable

what is the tradeoff with joints

strength vs mobility

fibrous joints are made of?

fibrous connective tissue

Cartilaginous joints are made of?

cartilage

synovial joints have a

joint cavity

example of synarthrosis

sutures

example of amphiarthrosis

pubic symphisis

example of diarthrosis

elbow, hip, shoulder

example of a fibrous joint

sutures

syndesmosis

bones connected by a ligament

gomphoses

binds teeth to bony sockets

synchondrosis

rigid cartilaginous bridge between two bones

articular cartilage is made of what type of cartilage

hyaline

what function does a joint cavity have?

allows movement

synovial fluid

inside joint cavity

synovial membrane

lines joint cavity

a

fibrous joints capsule

b

synovial membrane

c

articular cartilages

d

joint cavity

1

bursa

2

fat pad

3

ligaments

function of the bursae

cushion

function of the fat pad

cushion

nonaxial movement

gliding

uniaxial movement occurs where?

elbow

biaxial movement occurs where?

wrist

multi/triaxial movement occurs where?

shoulder

uniaxial

1 plane

biaxial

2 planes

multi/triaxial

3 planes

flexion

extension

hyperextension

extension past anatomical position

flexion and extension are movements in the ___________ plane

anterior-posterior

dorsiflexion

plantar flexion

abduction

adduction

abduction and adduction are movements in the __________ plane

frontal

circumduction

rotation

Rotation in reference to anatomical position

medial rotation

towards long axis

lateral rotation

away from body

*ignore labels*

inversion

eversion

I

supination

II

pronation

move forward

protraction

pull back

retraction

move up

elevation

move down

depression

opposition

bend vertebrae side to side

lateral flexion

flattened or slightly curved surfaces and minimal movement

plane joint/gliding joint

example of a plane joint

clavicle

Angular motion in a single plane (monaxial)

hinge joint

example of a hinge joint

elbow/knee

Oval articular face within a depression & motion in two planes

condylar joint

example of a condylar joint

radiocarpal

Articular faces fit together like a rider in a saddle & biaxial

saddle joint

example of a saddle joint

thumb

Rotation only & monaxial

pivot joint

Round head in a cup-shaped depression & triaxial

ball and socket joint

example of a ball and socket joint

shoulders/hip