91Ó°ÊÓ

blood, relating to blood ____________

The term meaning white blood cells is ________. erythrocytes \(\quad\) leukocytes \(\quad\) platelets thrombocytes

Commonly known as the natural pacemaker, the medical name of the structure is the __________. $$ \text { atrioventricular node } \quad \text { bundle of His } \quad \text { Purkinje fiber } \quad \text { sinoatrial node } $$

The myocardium receives its blood supply from the __________ arteries. $$ \text { aorta } \quad \text { coronary arteries } \quad \text { inferior vena cava } \quad \text { superior vena cava } $$

The ____________ the body. These blood cells destroy parasitic organisms and play a major role in allergic reactions. $$ \text { basophils } \quad \text { eosinophils } \quad \text { erythrocytes } \quad \text { monocytes } $$

The bicuspid valve is also known as the __________ valve. $$ \text { aortic } \quad \text { mitral } \quad \text { pulmonary } \quad \text { tricuspid } $$

The ____________ pumps blood into the pulmonary artery, which carries it to the lungs. $$ \text { left atrium } \quad \text { left ventricle } \quad \text { right atrium } \quad \text { right ventricle } $$

The _________ are the smallest formed elements in the blood, and they play an important role in blood clotting. erythrocytes \(\quad\) leukocytes \(\quad\) monocytes thrombocytes

A foreign object, such as a bit of tissue or air, circulating in the blood is known as a/an __________. $$ \begin{aligned} &\text { embolism }\\\ &\text { embolus }\\\ &\text { thrombosis }\\\ &\text { thrombus } \end{aligned} $$

The _________ carries blood to all parts of the body except the lungs. $$ \begin{array}{lll} \text { left atrium } & \text { left ventricle } & \text { right atrium } & \text { right ventricle } \end{array} $$