PATHOLOGY MCQ
IMMUNE RESPONSE
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
Why is selective permeability of the membrane important for conduction of an action potential?
|
|
it allows for the generation of a membrane potential
|
|
|
Na+ channels allow Na+, K+, and Ca2+ to pass
|
|
|
K+ is never allowed across the membrane or through channels
|
|
|
it allows for electricity to pass down the Schwann cells
|
Explanation:
Detailed explanation-1: -The resting membrane potential is determined mainly by two factors: the differences in ion concentration of the intracellular and extracellular fluids and. the relative permeabilities of the plasma membrane to different ion species.
Detailed explanation-2: -Without membrane potentials human life would not be possible. All living cells maintain a potential difference across their membrane. Simply stated, membrane potential is due to disparities in concentration and permeability of important ions across a membrane.
There is 1 question to complete.