CBSE
Multiple Choice QuestionsThe cardiac cycle in normal subject is about
0.5 s
0.8 s
1.0 s
1.2 s
The blood does not clot inside the body because of
oxygenation of blood
movement of blood
heparin in blood
absence of fibrinogen in blood
Most abundant mineral of animal body is
iron (Fe)
sodium (Na)
potassium (K)
calcium (Ca)
Which one has the thickest wall?
Right auricle
Right ventricle
Left auricle
Left ventricle
The difference between systolic and diastolic pressure in human is
120 mm Hg
80 mm Hg
40 mm Hg
200 mm Hg
Rh factor can produce disease
AIDS
Turner's syndrome
Erythroblastosis foetalis
Sickle-cell anaemia
Heparin is produced by
kidney cells
blood cells
bone marrow
Chief cell
Red cell count is carried out by
haemocytometer
haemoglobinometer
sphygmomanometer
electrocardiogram
The duration of cardiac cycle is
0.8 s
0.8 µs
0.08 s
0.008 s
Which of the following statements is related to Starling's law of heart?
Greater the stroke volume greater is the heart rate
Greater the initial length of the cardiac muscle fibre, more is the force of contraction of hear
Greater the minute volume, greater is the heart rate
Lesser the length of cardiac muscle fibre greater is the force of contraction of heart
