The ions that help in initiating muscle contraction are

SKELETAL MUSCLE

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

A	Magnesium ions
B	Sodium ions
C	Potassium ions
D	Calcium ions

Explanation:

Detailed explanation-1: -Both calcium & magnesium are required for muscle contraction. Calcium binds to troponin which exposes the active sites on actin. Now myosin head can bind the active sites on actin, initiating the process of muscle contraction.

Detailed explanation-2: -Calcium triggers contraction by reaction with regulatory proteins that in the absence of calcium prevent interaction of actin and myosin.

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