Question

Most abundant blood cells in the human body are}

• A. WBCs
• B. RBCs
• C. platelets
• D. plasma cells

Hint:

Approximate ratio of RBCs : platelets : WBCs in blood is about 600 : 40 : 1. So for every 1 WBC, there are about 40 platelets and 600 RBCs!

Answer 1

The Correct Option is B

Concept: Blood is a connective tissue composed of plasma and formed elements. The formed elements include Red Blood Cells (RBCs), White Blood Cells (WBCs), and platelets, each present in different proportions in circulation. Step 1:Understanding the relative numbers of blood components.
In normal human blood, their approximate counts per microliter are:

• RBCs: Around 4–6 million, making them extremely abundant
• Platelets: Roughly 150,000–400,000
• WBCs: About 4,000–11,000
• Plasma cells: Rare in circulating blood, mainly found in lymphoid organs

Step 2:Analyzing the given options.

• (A) WBCs: Present in much smaller numbers compared to RBCs.
• (B) RBCs: Present in the highest number among all blood cells.
• (C) Platelets: More numerous than WBCs but significantly fewer than RBCs.
• (D) Plasma cells: Not commonly found in circulating blood in large numbers.

Step 3:Conclusion.
Red Blood Cells are the most numerous components in blood, far exceeding the count of other cells. Hence, the correct answer is (B) RBCs.