PHYSIOLOGY
MUSCLE CONTRACTION
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
The sequence of electrical changes that occurs along the sarcolemma when a muscle fiber is stimulated is known as the ____
|
|
action potential
|
|
|
resting potential
|
|
|
membrane repolarization
|
|
|
membrane hyperpolarization
|
Explanation:
Detailed explanation-1: -The muscle action potential triggers a sequence of actions that ultimately results in the contraction and relaxation of the muscle fiber. This sequence is called the excitation–contraction–relaxation cycle.
Detailed explanation-2: -The sarcolemma can be excited electrically leading to the activation of muscle fibers by signals from motor nerves. The sarcolemma contains ion-conducting pathways and channels through which sodium, potassium, calcium, and chloride flow selectively and non-selectively.
There is 1 question to complete.