what role do a membrane channels play in action potential? What are the key events in...

what role do a membrane channels play in action potential? What are the key events in an action potential?

Expert Solution

gladiator answered 1 year ago

Acetylcholine stimulates an action potential in the muscle cell membrane by: a) Opening chloride channels in...

Acetylcholine stimulates an action potential in the muscle cell membrane by: a) Opening chloride channels in the muscle cell membrane b) Opening channels in the neuromuscular junction which allow sodium to move out of the cell c) Opening channels in the neuromuscular junction which allow potassium to move out of the cell d) Opening channels in the neuromuscular junction which allow sodium to move in and potassium to move out, though sodium moves faster than potassium because both chemical and...

What determines whether a neuron initiates an action potential? Include the role of resting membrane potential,...

What determines whether a neuron initiates an action potential? Include the role of resting membrane potential, threshold, sodium, graded potentials, and the axon hillock. (answer in short answer pragraph form)

In a normal contractile myocyte action potential what role does calcium play?

a) What role does positive feedback play in the generation of the action potential? b) The...

a) What role does positive feedback play in the generation of the action potential? b) The concentration of which ion would you change extracellularly to increase the probability of generating an action potential and why? State clearly whether you would increase or decrease the concentration.

How do hair cells work and what role do they play in hearing? What role does the basilar membrane play in frequency diserimination?

In a conduction cell like an SA node action potential, what role does calcium play?

• What protein creates membrane potential? • How can action potentials be expedited? • Do neurons...

• What protein creates membrane potential? • How can action potentials be expedited? • Do neurons always produce an action potential when they recieve input?

What are the four key functions of management? And what role do these functions play in...

What are the four key functions of management? And what role do these functions play in a firm's profitability,sustainance and success?

What would happen to an Action Potential if voltage-gated K+ channels were blocked? A. the Action...

What would happen to an Action Potential if voltage-gated K+ channels were blocked? A. the Action Potential could not occur B. the Action Potential would not repolarize C. the height of the action potential would be reduced D. the undershoot (after-hyperpolarization) would not occur

Define resting membrane potential and action potential (1 point). Why is the resting membrane potential negative...

Define resting membrane potential and action potential (1 point). Why is the resting membrane potential negative and close to the K+ equilibrium potential when cells are at rest, and then positive and closer to the equilibrium potential of Na+ when activated (4 points).

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