MUSCLE PHYSIOLOGY

PHYSIOLOGY

SLIDING FILAMENT MODEL

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
An Action Potential in the muscular system is essentially ____ (select 2)
A
a sequence of events of chemicals communicating with other chemicals to trigger a muscle contraction.
B
the biochemical communication between a motor neuron and the muscle it controls.
C
the denaturation of Acetylcholine to relax a muscle and stop a contraction.
D
the contraction of muscles shortly after death due to the unavailability of ATP and excess of Calcium.
Explanation: 

Detailed explanation-1: -An action potential is defined as a sudden, fast, transitory, and propagating change of the resting membrane potential. Only neurons and muscle cells are capable of generating an action potential; that property is called the excitability.

Detailed explanation-2: -The neuromuscular junction-where nerves and muscle fibers meet-is an essential synapse for muscle contraction and movement.

There is 1 question to complete.