Identify the blood vessel of the heart.

Which of these is not a major protein of plasma?

Which of these chemicals is not secreted by basophils?

What is the covering of the heart known as?

What is the network of threads in a coagulum known as?

RBCs are formed in the thymus.

Which of these are the most abundant in blood?

What is the average number of leukocytes per cubic mm of blood?