Membrane Potentials & Action

Question 0

2 Electrolytes we really care about:

1) Controls resting membrane potential
2) Controls the thresholds

Answer 0

1) Potassium

2) Calcium

Question 1

Action potentials move by this. Jumps from one node to the next. By doing this action potentials travel really fast.

Answer 1

Saltatory Conduction

Question 2

Administering ____ will move potassium into the cell by increasing the glu4 transporter (also giving patient glucose). Glucose pouring into cell, which increases the production of ATP (ATP increases and therefore sodium potassium atpase will become more active). Increasing sodium in will also increase sodium potassium atpase.

Answer 2

Insulin

Question 3

If we increase the threshold potential will ____ the rate of action potentials.

Answer 3

Decrease

Ex: paralyze nerve by increasing the threshold

Question 4

If we decrease the threshold potential will ______ the rate of action potentials.

Answer 4

Increase

Question 5

If we increase resting membrane potential will ____ the rate of action potentials.

Answer 5

Increase

Question 6

*For Potassium

Chemical Force = ?

Electrical Force = ?

Answer 6

Outwards

Inwards

Question 7

What is more common ligand gated extracellular or intracellular channels?

Answer 7

Extracellular