Question

10). List two (2) ways in which an action potential (AP) is different from a graded potential (GP).

11). Explain why myelinated nerve fibers conduct signals much faster than unmyelinated nerve fibers.

12). What is meant by the anterior (ventral) & posterior (dorsal) roots of a spinal nerve? Which of these is sensory & which is motor?

13. Contrast the composition and locations of gray matter & white matter in the brain.

Answer 1

Question no 10

Difference between action potential and graded potential

Graded potential depends greatly on the stimulus and the strength of the stimulus while action potential does not depend on these factors

The main cause for the action potential to originate is Depolarisation of membrane to threshold and graded potential are responsible for this initial membrane of threshold.

Chemical gated channel control the graded potential while action potential is controlled by the specific kind of voltage gated channels