Kinesiology Flashcards
Amphiarthrotic
Cartilaginous
Slightly movable
EX: pubic symphysis, between vertebrae, distal tibiofibular joint
Synarthrotic
Fibrous
Nearly immovable
Ex: skull sutures
Diarthrotic
Synovial joints
Freely movable
Joints with synovial fluid
Ball and socket joint
Diarthrotic-synovial
Largest ROM
movement in many directions (circumduction)
Ex: glenohumeral joint, acetabulum joint
Gliding joint
Diarthrotic-synovial
Bones slide past each other.
Ex: between carpals, between tarsals, acromioclavicular joints
Flat plates
Condyloid joint
Diarthrotic- synovial
convex/concave
Allows movement in 2 planes
flexion/extension and laterally
Ex: metacarpophalangeal joint, between occiput and C1
Hinge joint
Diarthrotic- synovial
Allows movement in 1 plane
flexion/extension
Ex” elbow, knee, between phalanges
Pivot joint
Diarthrotic- synovial
Allows rotational movement
Ex: between C1&C2, between radius and ulna
Saddle joint
Diarthrotic- synovial
Allows movement in many directions
Ex: carpometacarpal joint of thumb
Agonist muscle
Primary mover
Antagonist muscle
Muscle that opposes the action of another
Synergist muscle
Assists the agonist
Concentric contraction
Muscle contraction in which the muscle shortens and the attachment sites of the muscle move closer together
eccentric contraction
Muscle contraction in which the distance between the muscle attachments increases and the muscle effectively gets longer