Q. No.The tricuspid and bicuspid Valves are closed because of
(1) Atrial systole
(2) Attempted backflow of blood into the atria
(3) Ventricular relaxation
(4) Ventricular filling
(1) Atrial systole
(2) Attempted backflow of blood into the atria
(3) Ventricular relaxation
(4) Ventricular filling
Arrange the following events in a proper sequence.
i) Increased ventricular pressure
ii) Attempted backflow of blood into the atria
iii) Ventricular systole
iv) Closure of AV valves
1. i)-ii)-iii)-iv)
2. ii)-i)-iii)-iv)
3. iii)-i)-ii)-iv)
4. i)-iii)-ii)-iv)
SAN is responsible for
(1) initiating and maintaining a random contractile ability of heart
(2) initiating and maintaining a rhythmic contractile ability of heart
(3) maintaining a random contractile ability of heart
(4) Initiating a rhythmic contractile ability of heart
Semilunar valves are found between
(1) left ventricle and aorta
(2) right ventricle and pulmonary artery
(3) left ventricle and pulmonary vein
(4) both 1 and 2
Bicuspid valves are present between
(1) left atria and aorta
(2) right atria and pulmonary artery
(3) left atria and left ventricle
(4) right atria and right ventricle
Tricuspid Valves are present between
(1) left atria and aorta
(2) right atria and right ventricle
(3) left atria and left ventricle
(4) both 1 and 2
Platelets are formed from-
(1) Megakaryoblast
(2) Megakaryocyte
(3) Macrokaryoblast
(4) Macrophages
------- population has Rh----- on the surface of ------ present in their -------.
(1) 20 %, antigen, platelets, plasma
(2) 80 %, antigen, RBC, blood
(3) 80 %, antibody, platelet, plasma
(4) 20 %, antibody, RBC, blood
ABO blood grouping is based on
(1) presence of two soluble antibodies
(2) absence of two surface antigens
(3) presence of two surface antigens
(4) both 2 and 3
The transport of respiratory gases is taken care by which blood component?
(1) RBC
(2) WBC
(3) Platelets
(4) Fibrinogen
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