32.
Which of the following are involved directly in pulmonary circulation?

33.
Rh factor is discovered by

35.
What is the main purpose of white blood corpuscles?

36.
Study of pulse and arterial blood pressure is called

37.
Longest artery found in the body of human is

38.
Oxygen in our blood is transported by a protein named

39.
Who was the discoverer of human blood groups ?

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