Term
|
Definition
| has transverse (t) tubules |
|
|
Term
|
Definition
| carry electric current from surface to interior of cell where it stimulates terminal cisternae to release calcium |
|
|
Term
|
Definition
| calcium storage organelle |
|
|
Term
|
Definition
| contains glycogen (stored energy) and myoglobin ( binds oxygen) |
|
|
Term
|
Definition
| central to muscle contraction |
|
|
Term
|
Definition
| made of myosin shaped like a golf club |
|
|
Term
|
Definition
| made up of actin. each has active site that can bind the head of myosin molecule |
|
|
Term
|
Definition
| regulatory protein of muscle contraction |
|
|
Term
|
Definition
| unit of contraction of muscle fiber |
|
|
Term
|
Definition
| innervated by somatic motor neurons |
|
|
Term
|
Definition
| consists one nerve fiber and all the muscle fibers it innervates |
|
|
Term
|
Definition
| point of contact between neuron and its target cell |
|
|
Term
|
Definition
| target cell is muscle cell synapse |
|
|
Term
|
Definition
| neurotransmitter is always acetylcholine(ach) also present is acetylcholinesterase that breaks down ach after stimulation |
|
|
Term
|
Definition
| study of electrical activity of cells |
|
|
Term
| resting membrane potential |
|
Definition
| RMP; stable voltage across plasma membrane of unstimulated cell |
|
|
Term
|
Definition
| rapid voltage change in which plasma membrane briefly reverse polarity |
|
|
Term
|
Definition
| minimal voltage necessary to produce a muscle contraction |
|
|
Term
|
Definition
| cycle of muscle contraction and relaxation after a single, brief stimulus |
|
|
Term
|
Definition
| period of time when a muscle will not contract after 2 successive twitches |
|
|
Term
|
Definition
| progressive and loss of contractility |
|
|
Term
|
Definition
| difference between resting state of oxygen consumption and elevated rate following exercise |
|
|
Term
|
Definition
| large; used for stop-and-go activities; have a white appearance |
|
|
Term
|
Definition
| small; are high endurance fibers; have dark appearance |
|
|
Term
|
Definition
| terminal branch of an axon synapse with individual muscle cells and form motor unit |
|
|
Term
| single-unit smooth muscle |
|
Definition
| nerve fiber does not synapse with particular cell but rather releases neurotransmitter at several point within tissue |
|
|
