Question

Hyponatremia is a condition in which the sodium in the blood is too low. Uncontrolled spasms, which are sudden, involuntary contractions of muscles, are among the symptoms of hyponatremia. Why do they occur?
A.
Sodium is needed to generate an action potential.
B.
Sodium makes up most of the myelin sheath.
C.
Sodium is the signaling molecule that transmits impulses across a synapse.
D.
Sodium controls voluntary movement, and potassium controls involuntary movement.

Answer 1

sodium is needed to generate an action potential

Answer 2

The condition of the low sodium level in the blood is called hyponatremia.

One of the symptoms of this hyponatremia is an uncontrolled spasm which is caused by the sudden contraction of the muscle.

The main reason for this cause is the sodium which is needed to generate an action potential.