EAON2

Question 1

Refractory period. Two types. What are they

Answer 1

Relative refractive period and absolute refractory period
Relative refractive period will require a very strong impulse to trigger action potential. Absolute refractory period allows absolutely none

Question 2

What is action potential

Answer 2

Rapid change is membrane potential which is used to conduct a signal along the membrane of a neurone or muscle

Question 3

Axon potentials are generated where?

Answer 3

The axon hillock.or synapse

Question 4

Dribing force?

Answer 4

Vm - Veq

Tells how much force is required to reach the equilibrium potential

Question 5

What is electronic spread

Answer 5

The passive flow of change in the electrical potential along the nerve

Question 6

Electrical gradient is

Answer 6

difference in voltage on either side of the membrane

Question 7

Chemical gradient

Answer 7

Different in ionic concentration on either side of membrane

Question 8

Electrochemical equilibrium

Answer 8

Reached when chemical and electrical gradients are reached and there is no net movement of the given ion

Question 9

Equilibrium potential

Answer 9

Membrane potential established at an ions electrochemical equilibrium

Question 10

What is the nernst equation

Answer 10

Allows us to calculate potential that will be established acros the membrane for a given ion based in the valence and concern gradient of that ion

Question 11

Graded potentials?

Answer 11

Changes in membrane potential that vary in size