Cardiovascular 1
What is the smooth layer of cells lining the inside of the heart?
Endocardium
What is the muscular middle layer of the heart?
Myocardium
What is the pace-maker of the heart called?
Sinoatrial node
What is the valve between the right ventricle and the pulmonary artery called?
Pulmonary semi-lunar valve
What is the valve between the left atrium and the left ventricle?
Mitral valve
What is the valve between the left ventricle and the aorta called?
Aortic semi-lunar valve
What are the red blood cells that carry oxygen and carbon dioxide called?
Erythrocytes
What are white blood cells that help fight infection called?
Leukocytes
What are the blood cells that are also called platelets and are important for clotting called?
Thrombocytes
What are the smallest branches of arteries called?
Arterioles
What are blood vessels that carry blood away from the heart called?
Arteries
What is the period of ventricular contraction in the heart called?
Systole
What is the tissue that flows through the circulatory system called?
Blood
What are the blood vessels that carry blood back to the heart called?
Veins
What are the vessels that connect arterioles with venules and allow oxygen and nutrients to pass through to cells called?
Capillaries
What is the fluid portion of blood called?
Plasma
What are the smallest branches of veins called?
Venules
What is the muscular wall that separates the heart into the right and left sides called?
Interventricular septum
What is the largest artery in the body?
Aorta
What are the upper chambers of the heart called?
Atria
What is the complex protein on erythrocytes called?
Hemoglobin
What is the double-layered membrane surrounding the heart called?
Pericardium
What is the the lower chamber of the heart called?
Ventricle
What are the two largest veins in the body called?
Superior and inferior vena cava
What is the medical term for a heart attack?
Myocardial infarction