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The thread like tendons of papillary muscles inserted upon the flaps of tricuspid and bicuspid valves are

reticulate fibres
yellow elastin fibres
collagen fibres
chordae tendinae
Additional Questions

Maximum amount of oxygen is exchanged from the blood in the

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During ventricular systole

Answer

Given below are four statements (a-d) regarding human blood circulatory system

(a) Arteries are thick-walled and have narrow lumen as compared to veins

(b) Angina is acute chest pain when the blood circulation to the brain is reduced

(c) Persons with blood group AB can donate blood to any person with any blood group under ABO system

(d) Calcium ions play a very important role in blood clotting

Which two of the above statements are correct?

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An artificial pace-maker is implanted subcutaneously and connected to the heart in patients

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The following are the branches of dorsal aorta:

I. Intercostal
II. Phrenic
III. Coeliac
IV. Anterior mesenteric
V. Posterior mesenteric
Of these which set of arteries supply the blood to the glands of digestive system?

Answer

Number of WBCs present in one mm3 of blood is

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In a healthy adult man the normal diastolic pressure is

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In which of the following disorders, blood has a defective hemoglobin?

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Thromboplastin required for blood clotting at the place of injury is released by

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In which one of the following pair the two items mean one and the same thing?

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