Which of these cells are thrombocytes formed from?

Which of these diseases make the lumen of arteries narrower?

What is the main symptom of heart failure?

RBCs are formed in the thymus.

What percentage of blood is plasma?

Which of these ions play an important role in blood clotting?

Which structure is not responsible for the transmission of action potential to the ventricles?

Which of these are present in the plasma of a person having ‘O’ blood group?