When does leukopenia occur?
Typhoid infection
Allergy
Influenza
Eosinophilia
What is the shape of nucleus in W. B. C.?
Round
Oval
Spindle
Irregular
Who discovered Rh factor?
Harvey, W.
Landsteiner and Wiener
Levine
Wiener
The vessel which leads blood to Bowman's capsule is:
Afferent arteriole
Pulmonary vein
Efferent arteriole
Renal vein
Among vertebrates, the largest erythrocytes (above 80µ in diameter) are found in which of the following organisms?
Amphiuma
Camel
Elephant
Ostrich
An increase in the concentration of CO2 in the blood reduces the oxygen combining capacity of haemoglobin. This condition is known as:
Chloride shift
Bohr's effect
Asphyxia
Pneumatosis
Membrane surrounding the heart is called:
Peritoneum
Visceral membrane
Pericardium
Pleural membrane
Significant role of blood clotting is played by which of the following?
Neutrophils
Thrombocytes
Erythrocytes
Leucocytes
During normal conditions, coagulation of blood in the vessels is prevented by:
Prothrombin
Calcium
Plasminogen
Heparin
Which of the following is different from others in the absence of muscular coat?
Veins
Arteries
Capillaries
Arterioles