The major events of the cardiac cycle, in order, are: 

An eosinophil:

Which of the following is the thickest layer of the heart wall?

The outermost layer of a blood vessel is the:  

Which of the following is true about blood:

Which of the following would be true for a person with type B blood?

A blood examination reveals that the average hemoglobin molecule in Mary’s blood contains two irons. Which of the following statements would be a correct diagnosis? 

The innermost layer of a blood vessel is the:  

Which of the following is true regarding blood vessels?

Which of the following lines the inner walls of the ventricles?