Question

Which of the following is the advantage of the biconcave structure of the RBC?

• A. Systemic circulation - generates efficient waveforms
• B. Tachycardia - Heart rate is 70-75 beats
• C. Bradycardia - Heart rate falls below 60 beats
• D. Atrial fibrillation - generates inefficient waveforms

Answer 1

The correct option is B

Tachycardia - Heart rate is 70-75 beats

Red Blood cells or RBC, also called erythrocytes are minute biconcave disc like structures with a diameter of 7 microns. The small size and the concave shape provides a large surface area. Increase in surface area increases the efficiency of oxygen absorption.