Articles > Quizzes & Surveys > Circulation – Quiz Circulation – Quiz Quiz Select the best answer. 1. The liquid in blood Blood cells Plasma Platelets 2. Plasma without the proteins Hematocrit Serum Platelets 3. All of the following are leukocytes except for Erythrocytes Eosinophils Basophils Neutrophils 4. Which of the following is NOT true about platelets? They are colorless. They are derived from megakaryocytes. They are involved in blood clotting. They are non-blood cell components of blood. 5. Which of the following is true about heart anatomy? The heart is a muscle enclosed in a sac called myocardium. The right AV valve is called the mitral valve. The cardiac muscle cells are not striated. The cardiac cycle consists of the sytole and the diastole. Send Your Results (Optional) Your Name To Email Time is Up!