During normal conditions, coagulation of blood in the vessels is prevented by:
Prothrombin
Calcium
Plasminogen
Heparin
Two chambered heart is found in
Frog
Fish
Crocodile
Lizard
Clot of blood contains which of the following?
Thrombin
Fibrinogen
Fibrin
The vessel which leads blood to Bowman's capsule is:
Afferent arteriole
Pulmonary vein
Efferent arteriole
Renal vein
What is the difference of lymph from blood?
Lymph has more RBC and less WBC
Lymph lacks plasma
Lymph contains plasma without proteins
Lymph has no RBC but more WBC
Among vertebrates, the largest erythrocytes (above 80µ in diameter) are found in which of the following organisms?
Amphiuma
Camel
Elephant
Ostrich
Person with blood group A possesses which antibody?
A only
B only
No antibodies
Both A and B
Prothrombin which helps in clotting blood is released by:
Blood platelets
Blood corpuscles
Blood plasma
Traumatized tissue
When does leukopenia occur?
Typhoid infection
Allergy
Influenza
Eosinophilia
Which of the following vein has least amount of urea ?
Hepatic portal vein
Hepatic vein