After the depolarisation phase of an action potential, the resting potential is restored by ______.

What are the roles of membrane fluidity in neuron function with regards to metabotropic mechanism(s) that alter membrane potential.

What causes depolarization of a neuron membrane potential?

what is the correct order of the phases of an action potential

In SA nodal cells the upstroke of the action potential:A)is characterized by a substantial overshoot component.B)results from rapid inward movement of Na+.C)results from inward movement of Ca2+D)results from inward movement of K+.

please answer D through K

The concentration of potassium ions inside a nerve cell membrane is higher than the concentration of sodium ions outside the mem-brane, yet the inside of the membrane (where the cation concentra-tion is higher) is negative to the outside. Explain this observation in terms of permeability properties of the membrane.

A sodium channel in a nerve membrane a)Inactivation gate closes when the membrane reaches ~+30 mV. b)Opens and closes quickly. c)Activation gate opens when the membrane reaches threshold voltage. d)'Resets' when the membrane reaches resting potential .

13) Draw a graph representing the changes in membrane potential across the axonal membrane before, during, and after an action potential. On your graph, use a highlighter to clearly indicate for which portions of your graph the letter corresponding to each cellular event listed below belongs. List of cellular events: A) All K* channels open B) All Na* channels close C) The Na*/K* ATPase cotransporter transports Na* and K* across the membrane. D) All Na* channels open E) The threshold value of membrane potential is attained. F) All K* channels close G) Some Na* channels open Your graph:

33 Explain how the transmission of an action potential would be impacted if voltage-gated calcium channels could not open. In your answer, explain the usual process ofhow an action potential is transmitted from one neuron to the next neuron.Answer in a sentence format.