(Anatomy) Unit 2: Concept 2

structural classification

Based on what binds the bones together in the joint and if a cavity is present

functional classification

Based on what they do and how much movement they allow

pivot

Joint that allows pronation

pronation

Movement that allows you to turn your arm backward, flip your palms over

adduction

Movement toward the midline of the body

circumduction

Type of movement that allows you to move your arm in a complete circle

gliding joint

also called plane joint;allows one bone to slide over another

Isotonic

causes a change in the length of the muscles

Synovial joints

connect bones with dense connective tissue and a fluid filled cavity

Fibrous joints

connect bones with the collagen fibers of dense connective tissue

arm curl

flexion and extension

Diarthrosis

freely moving joints

condylar

joint part of your wrist; looks like a pedestal with a joint on top

ball and socket joint

joint that allows the most movement and maneuverability of all synovial joints.

contract

movement occurs when muscles do this

elevation

movement to lift shoulders to shrug

abduction

moving away from the median plane; along the frontal plane

isometric

no change in muscle length

synarthroses

non-moving joints

origin

that bone that moves the least or not at all

insertion

the movable bone during a muscle contraction

Saddle joint

type of joint that allows thumb to grab things in a way other fingers cannot