Multiple choice

The three types of corpuscles in the human blood are

  1. erythrocytes, leucocytes and blood platelets

  2. erythrocytes, haemoglobin and plasma

  3. erythrocytes, leucocytes and haemoglobin

  4. erythrocytes, leucocytes and plasma
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A Correct answer
Explanation

The three types of blood corpuscles (formed elements) are erythrocytes (RBCs), leucocytes (WBCs), and thrombocytes (blood platelets). Hemoglobin is a protein within RBCs, not a separate cell type. Plasma is the liquid portion containing water, proteins, etc., not a corpuscle. This is fundamental blood cell classification.

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