myology intro
Terms
undefined, object
copy deck
- cardiac muscle
- striated, involutary, HEART
- smooth muscle
- involuntary, not striated
- skeletal muscle
- striated voluntary
- what are the four parts of a muscle?
- belly, tendon, origin, insertion
- fascicle
- collection of muscle fibers
- muscle fibers
- muscle cells
- myofibril
- collections of myosin and actin
- myofilaments
- actin and myosin fibers
- epimysium
- covers the entire muscle--continuous with the tendon
- perimysium
- covers fascicles (bundle of fiber)
- endomysium
- covers individual muscle fiber (cell)
- agonist
-
Prime movers
basic movement (BICEP) - antagonist
- performs the opposite motion of the agonist (TRICEP)
- synergist
- muscle that prevents unwanted motion at one joint to facilitate motion at another
- flexion
- decreasing the angle at a joint
- extension
- increasing the angle at a joint
- abduction
- moving away from the midline
- adduction
- moving toward the midline
- circumduction
-
combonation of flexion, extension, abduction and adduction
finger=== not real rotation - rotation
- moving a bone along its longitudinal axis
- dorsiflexion
- drawing the forefoot up and the heel down
- plantarflexion
- drawing the forefoot down and the heel up
- inversion
- turning the sole of the foot inward
- eversion
- turning the sole of the foot outward
- pronation
- turning the palm of the hand posteriorly (down)
- supination
- turning the palm of the hand anteriorly (up)