NEET BIOLOGY

HUMAN PHYSIOLOGY

BODY FLUIDS AND CIRCULATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The most abundant WBC is ____
A
neutrophil
B
basophil
C
eosinophil
D
lymphocytes
Explanation: 

Detailed explanation-1: -Neutrophils. Neutrophils are the commonest type of white blood cell found in a blood smear. They make up 60-70% of the total amount of white blood cells.

Detailed explanation-2: -Neutrophils. They kill and digest bacteria and fungi. They are the most numerous type of white blood cell and your first line of defense when infection strikes.

Detailed explanation-3: -Basophils are the least abundant WBCs and make only 0.5-1.0% of it. Eosinophils and monocytes make 2-4% and 3-8% of the total WBCs respectively.

Detailed explanation-4: -The B-lymphocytes produce antibodies. This is the second most numerous leukocyte, accounting for 25-35% of the cells counted in a Differential WBC Count. When the number of these cells exceeds the normal amount, one would suspect infectious mononucleosis or a chronic infection.

Detailed explanation-5: -Neutrophils are the most abundant white blood cell in circulation. They are chemically drawn to bacteria (by cytokines) and migrate through tissue toward infection sites. Neutrophils are phagocytic (ie they engulf and destroy target cells).

There is 1 question to complete.