NHA-Phlebotomy Exam Questions and Correct Answers

NHA-Phlebotomy Exam Questions and Correct Answers The two circulations of the heart: - ANSWER Pulmonary (right) Systemic (left) Pulmonary Circulation carries: - ANSWER Deoxygenated blood to the lungs and oxygenated blood from the lungs. What kind of valve is the tricuspid valve? - ANSWER atrioventricular The pulmonary valve is situated between: - ANSWER right ventricle and pulmonary artery Endocardium is which layer of the heart? - ANSWER inner layer The myocardium is the layer of the heart that is made of: - ANSWER muscle Which layer of the heart is the epicardium? - ANSWER outer layer What kind of blood do arteries and arterioles carry? - ANSWER oxygenated blood What percentage of the blood is made up of formed elements? - ANSWER 45% - erythrocytes, leukocytes & thrombocytes. What percentage of formed elements is erythrocytes? - ANSWER 90% What is the oxygen carrying protein in erythrocytes? - ANSWER hemoglobin Where do blood cells originate? - ANSWER bone marrow