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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