CBSE
Multiple Choice QuestionsWhich of the following is the correct pathway for propagation of cardiac impulse?
SA node AV node Bundle of His Purkinje fibres
AV node Bundle of His SA node Purkinje fibres
SA node Purkinje fibres AV node Bundle of His
Purkinje fibres AV node SA node Bundle of His
Pernicious anaemia results due to deficiency of
vitamin-B1
vitamin-A
vitamin-B12
iron
Name the following having oxygen storing capacity
myoglobin
prophase- II
anaphase- I
metaphase- II
Which one of the following is incorrect for Atherosclerosis?
Constriction of arterial luman reduces the blood flow
Loss of dilatation ability of the arterial wall and its rupture
Cholesterol deposition at the inner wall of the artery
Proliferation of the vascular muscles
Calcium level decreases in the blood due to hyposecretion of
parathyroid hormone
calcitonin
thyroxine
adrenaline
The blood vessel which supply oxygenated blood to cardiac tissue is
coronary artery
coronary vein
coronary sinus
pulmonary vein
Amount of oxygen supplied by 100 mL arterial blood while passing through the tissues is
0.4 - 0.6 mL
4 - 6mL
14 - 15 mL
19 - 20 mL
Juxtaglomerular apparatus is made up of
juxtaglomerular cell, macula densa and lacis cell
juxtaglomerular cell, Purkinje cell and chied cell
juxtaglomerular cell, lads cell and myoepithelial cell
juxtaglomerular cell, macula densa and Argentaffin cell
In a normal adult human, the average cardiac output (stroke volume) is
47 mL
70 mL
5 L
3.3 L
Which vitamin helps in blood coagulation?
Vitamin- K
Vitamin- C
Vitamin- A
Vitamin- D
