Skeletal System-Joints and Movement, AH1

24 terms by MsIngle 

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Synovial Joint

Allows wide range of movement, contains synovial fluid

Synovial Membrane

Lines inside of capsule and secretes fluid

Articular Cartilage

Covers end of bones to prevent friction

Bursae

Sacs of synovial fluid

Ball & Socket Joint

Allows widest range of movement, hips and shoulders only

Hinge Joint

Moves in once direction or plane, allows flexion and extension e.g. elbow, knee, outer joints of fingers

Pivot Joint

rotate on a 2nd, arch-shaped bone, example: radius and ulna

Flexion

Bending at knee or elbow, raising arm and leg at shoulder and hip along sagittal plane

Extension

Straightening at knee or elbow, lowering arm and leg at shoulder and hip along sagittal plane

Plantarflexion

Pointing foot at hinge joint of ankle

Dorsiflexion

Bring toes towards shin at hinge joint of ankle

adduction

Moving arm at ball and socket joint of shoulder along transverse plane towards midline of body

abduction

Moving arm at ball and socket joint of shoulder along transverse plane away from midline of body

Bones articulating at shoulder

Humerus, Clavicle, Scapula

Bones articulating at hip

Femur, Pelvis

Bones articulating at knee

Femur, Tibia, Patella

Bones articulating at ankle

Tibia, Fibula, Tarsals

Synovial fluid

Lubricates and reduces friction between articulating bones

gliding joint

flat surfaces that glide across each other; example: vertebrae

suture

immovable joint in the skull

circumduction

circular movement of joint, combining movements; possible in shoulder joint, hip joint, and trunk around a fixing point

rotation

turns a bone on its own axis

pronation

rotation of the hands and forearms so that the palms face downward

supination

rotation of the hands and forearms so that the palms face upward

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