What are symptoms of eosinophilia?

Match Column-I with Column-II and select the CORRECT option.

Which of the following statements are correct?

A. Basophils are most abundant cells of the WBCs

B. Basophils secrete histamine, serotonin and heparin

C. Basophils are involved in inflammatory response

D. Basophils have kidney shaped nucleus

E. Basophils are agranulocytes.

Choose the correct answer from the options below: 

Study the following.
A) Blood coagulation is also called haemolysis.
B) Blood clotting is a change in plasma.
C) Serum does not contain clotting factors like prothrombin and fibrinogen.
D) Proconvertin is involved in extrinsic pathway.

Select the incorrect statement.

The haemocytometer is a thickened glass slide with small chamber of grids cut into the glass and is used to count cells. Each chamber has a fixed volume and is etched into nine large squares (see figure, $P$ to $X$ ), each measuring $1\mathrm{mm}\times 1\mathrm{mm}$ and $0.1\mathrm{mm}$ deep. Each large corner squares $(P,R,V$ and $X)$ contain $16$ small squares. With a coverslip in place, each of these small squares represents a volume of $0.1{\mathrm{mm}}^3$ $\left(1.0{\mathrm{mm}}^2\right.$ area $\times 0.1\mathrm{mm}$ depth ) or ${10}^{-4}{\mathrm{cm}}^3$. The number of cells counted in $4$ large corner squares was $400$, with the conversion factor as $1000.$

$\mathrm{Number} \mathrm{of} \mathrm{cells}per\mathrm{ml}=\frac{ \mathrm{Number} \mathrm{of} \mathrm{cells} \mathrm{counted} }{ \mathrm{Large} \mathrm{squares} \mathrm{counted} }\times \mathrm{Dilution} \mathrm{factor}$

Given this information, calculate the total number of cells suspended in a volume of $5\mathrm{ml}$, considering that the cells were diluted $1: 2$ before counting.

Which one of the following is incorrect regarding WBCs?

(a) Monocytes migrate from the bloodstream to other tissues and differentiate into tissue-resident macrophages, Kupffer cells in the liver.

(b) Eosinophils modulate allergic inflammatory responses.

(c) Basophils release histamine for inflammatory response.

(d) Natural killer cells are a type of phagocytic erythrocytes.