 | Term | Definition |
| |
acetycholine |
when the nerve impulse travels thru the motor neuron and enters the neuromuscular junction this is released |
| |
calcium ions |
driving force behind a contraction |
| |
red muscle |
slow twitch muscle fibers |
| |
myoglobin |
chemically similar to hemoglobin in red blood cells |
| |
slow twitch |
most postural muscles are this type |
| |
pink muscle |
fast twitch A muscles |
| |
white muscle |
fast twitch B muscles |
| |
stretching |
opposite of a muscular contraction |
| |
hyperflexibility |
flexibility beyond normal ROM: causes joint instability |
| |
proprioceptors |
sensory receptors located in muscles,joints,tendons |
| |
golgi tendon |
musculotendonous junction that detects tension applied to tendon during slow static stretch |
| |
concentric |
type of isotonic contraction that shortens |
| |
eccentric |
type of isotonic contraction that lengthens |
| |
biarticular |
type of muscle that crosses 2 joints and acts on both |
| |
tonus |
continuous partial contraction of a muscle |
| |
synergist |
causes same movement |
| |
fixator |
stabilizes joint over which prive mover exerts its action |
