Question

Describe the effect of various ions on heart rate.

A. Sodium increases, potassium decreases
B. Calcium increases, magnesium decreases
C. Potassium increases, calcium decreases
D. Sodium decreases, magnesium increases

Answer 1

The effect of various ions on heart rate depends on the specific ion. For example, sodium ions increase heart rate while potassium ions decrease heart rate. Calcium ions increase heart rate and contractility, while magnesium ions decrease heart rate.

Step-by-step explanation:

The effect of various ions on heart rate depends on the specific ion. For example, sodium ions increase heart rate while potassium ions decrease heart rate.

Calcium ions increase heart rate and contractility. On the other hand, magnesium ions decrease heart rate.