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Mansoor Al-Ansy
Physiology
| Question | Answer |
|---|---|
| What does the movement of the membrane potential away from zero (below the usual RMP) called? | hyperpolarization |
| What is the membrane potential? | The difference in electrical charge between the inside and outside of a membrane |
| What is the difference between sodium and potassium in the generation of action potential? | Sodium causes depolarization of the cell membrane, and potassium causes repolarization of the cell membrane |
| Complete: The magnitude of the action potential peaks when ------------------------------------ | the sodium channels close |
| Which chemicals allow neurons to communicate with one another? | neurotransmitters |
| Which membrane receptor acts to directly change ion permeability when stimulated? | ligand-gated ion channel |
| If the magnitude of the local depolarization surpasses a limit called the _____, voltage-gated Na+ channels open. | threshold potential |
| What are the painful muscle contractions or involuntary twitches called? | Cramps |
| Stretching the foot down and back and pointing the toe is called ------------------------ | plantar flexion |
| After it is released from the sarcoplasmic reticulum, the calcium combines with which protein? | troponin |
Created by:
Mansoor Al-Ansy