Lab 3

CNS, PNS, Somatic (voluntary mvmt), Autonomic (Para symp)

(sarcolemma(myofibril(myofilament)))

agonist- contracts to perform action

antagonist- contracts to perform opposite action

prime mover- most efficient

assistors- assist prime movers

synergist- two or more muscles perform same action

Stabilizers- act to make action more stable

joint- where two bones meet

gliding, uniaxial, byaxial, triaxial- types of synovial joints

irritability, extensibility, and elasticity ******REVIEW

irritability- ability of a muscle to respond to a stimulus

extensibility- ability to stretch without being damaged

elasticity- ability to return to resting length

5 shapes of muscles-

Fusiform, contract to ½ length

pennate, one tendon attachment

Bipennate, one tendon attachment

multipennate, Powerful bc cross sectioning

radiate, powerful

myotactic response-autonomic response to stretching too far, like a seatbelt analogy

golgi tendon- too much contraction, tell you "LET GO LET GO”, like phone overheating

3 phases of motor learning