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Quiz 2
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Q.1
Pace maker is situated in heart .. ..
in the wall of right atrium
On interauricular septum
On interventricular septum
In the wall of left atrium
Q.2
Name the blood cells, whose reduction in number can cause clotting disorder, leading to excessive loss of blood from the body.
Neutrophils
Thrombocytes
Erythrocytes
Leucocytes
Q.3
In cardiac cycle, blood pressure is maximum during
Atrial systole
Atrial diastole
Ventricular systole
Ventricular diastole
Q.4
The heart beat is maximum in.
Adult males
Foetus
Elderly people
Adult females
Q.5
Pulse pressure is ______ mm Hg
40
25
120
80
Q.6
In humans, blood passes from the post caval to the diastolic right atrium of heart due to
Stimulation of Sino auricular node
Pressure difference between the post caval & atrium
Pushing open of the venous valves
Suction pull
Q.7
Fastest distribution of some injectable material/ medicine & without any risk can be acchieved by injecting it into the
Muscles
Arteries
Veins
Lymph vessels
Q.8
Which two of the following changes usually tend to occur in the plain dwellers when they move into high altitudes?Increase in RBC's sizeIncrease in RBC productionIncreased breathing rateIncreased thrombocyte count
1 & 4
1 & 2
2 & 3
3 & 4
Q.9
If due to some injury the chordae tendinae of the tricuspid valve of the human heart is partially non-functional, what will be the immediate effect?
The flow of the blood will be immediate slowed down
The 'Pace maker' will stop working
The blood tends to flow back into the left atrium
The flow of blood into the pulmonary artery will be reduced
Q.10
What would be the heart rate of a person if the cardiac output is 5 L, blood volume in the ventricles at the end of diastole ismL and at the end of ventricular systole ismL?
50 beats per minute
75 beats per minute
100 beats per minute
125 beats per minute
Q.11
Arteries have __________ and ___________ walls when compared to veins
Thicker; stronger
Thicker; weaker
Thinner; stronger
Thinner; weaker
Q.12
Blood flow velocity is slowest in the
Arteries
Arterioles
Capillaries
Venules
Q.13
What vessels hold the largest percentage of the blood supply?
artery
arteriole
capillary
vein
Q.14
ECG depicts the depolarisation and repolarisation processes during the cardiac cycle. In the ECG of a normal healthy individual one of the following waves is not represented.
Depolarisation of atria
Repolarisation of atria
Depolarisation of ventricles
Repolarisation of ventricles
Q.15
The VOLUME of blood pumped out of a ventricle with each heartbeat is known as ________
Heart Rate
Stroke Volume
Cardiac Output
Blood Pressure
Q.16
The term that means heart contraction is ________.
diastole
systole
tachycardia
fibrillation
Q.17
Blood pressure in the mammalian aorta is maximum during:
Diastole of the right atrium
Systole of the left atrium
Diastole of the right ventricle
Systole of the left ventricle
Q.18
If you suspect major deficiency of antibodies in a person, to which of the following would you look for confirmatory evidence?
Serum globulins
Fibrinogin in plasma
Serum albumins
Haemocyte
Q.19
Standard ECG of a normal person. The P-wave represents the …
Contraction of both the atria
Initiation of the ventricular contraction
Beginning of the systole
End of systole
Q.20
Blood pressure in the pulmonary artery is :- …
same as that in the aorta.
more than that in the carotid.
more than that in the pulmonary vein.
less than that in the venae cavae.
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