okay so i am a pta major and i am in anatomy and physiology right now and we are doing muscle contractions right now and i just DO NOT GET IT. so if anyone could explain it to me that would be wonderful...
this is what i have in the way of notes for it:
-motor nueron action potention
-acetylcholine release and binding (to motor end plate)
-action potential in sarcolemma
-calcium release from sarcoplasmic reticulum
-exposure of actin active sites
-binding with myosin cross bridges
-reset
i mean i kind of get it..like i know what the sarcolemma and the SR and myosin and actin is..
i dont really understand what action potential is though
any help at all would be GREATLY appreciated!!!!!!!!!
2007-10-22 15:29:15 · 1 answers · asked by Anonymous in Science & Mathematics ➔ Biology
The nerve action potential is the technical term of nerve impulse. The signal is transmitted electrically along the axon. At the nerve-muscle junction, the signal causes the release of acetylcholine, which binds to a receptor and causes a mechanical response: muscle contraction.
2007-10-22 16:04:21 · answer #1 · answered by OKIM IM 7 · 0⤊ 0⤋