Indicate whether the statement is true or false: During diastole, the atria are filling with blood and the ventricles contract.

Indicate whether the statement is true or false: Aplastic anemia is a result of injury to or destruction of the bone marrow.

Indicate whether the statement is true or false: Neutrophils, monocytes, lymphocytes, and thrombocytes are all different types of leukocytes.

Indicate whether the statement is true or false: Sickle cell anemia is a chronic, inherited anemia that occurs almost exclusively among African Americans.

Indicate whether the statement is true or false: A common symptom of a myocardial infarction is a severe, crushing pain that radiates to the arm, neck, and jaw.

Indicate whether the statement is true or false: Phagocytosis is a process by which erythrocytes destroy pathogens or germs.

Indicate whether the statement is true or false: Leukemia is a malignant disease of the blood vessels that destroys white blood cells.

Indicate whether the statement is true or false: The smallest branches of arteries are called arterioles.

Indicate whether the statement is true or false: Arrhythmias are abnormal heart rhythms and can be mild to life threatening.

Indicate whether the statement is true or false: Fibrinogen and prothrombin are blood proteins necessary for the clotting of blood.

Indicate whether the statement is true or false: Arteriosclerosis is a ballooning out of, or saclike formation on, an artery wall.

Indicate whether the statement is true or false: The double-layered membrane that covers the outside of the heart is the endocardium.

Indicate whether the statement is true or false: Plasma is approximately 75 percent water with many suspended substances.

Indicate whether the statement is true or false: The movement of the electrical impulse in the heart can be recorded and used to detect abnormal activity or disease.

Indicate whether the statement is true or false: Even though the heart weighs less than one pound, it pumps approximately 2,000 gallons of blood through the body each day.

Indicate whether the statement is true or false: If hypertension is not treated, it can cause permanent damage to the heart, blood vessels, and kidneys.

Indicate whether the statement is true or false: An embolus is a foreign substance circulating in the bloodstream.

Indicate whether the statement is true or false: The period of ventricular contraction in the heart is called systole.

Indicate whether the statement is true or false: Hemoglobin carries both oxygen and carbon dioxide.

Indicate whether the statement is true or false: Capillaries allow oxygen and nutrients to pass through to body cells.

Indicate whether the statement is true or false: Venules have thin walls containing only one layer of cells.

Indicate whether the statement is true or false: Fixed pacemakers deliver electrical impulses only when the heart’s own conduction system is not responding correctly.

Indicate whether the statement is true or false: The lower part of the septum is called the interatrial septum.

Indicate whether the statement is true or false: Hypotension is high blood pressure.

Indicate whether the statement is true or false: Angioplasty may be used to remove or compress deposits in arteries, or to insert a stent to allow blood flow.

Indicate the answer choice that best completes the statement or answers the question: Which of the following is not true of thrombocytes?

Indicate the answer choice that best completes the statement or answers the question: Which of the following blood proteins does not aid in clotting?

Indicate the answer choice that best completes the statement or answers the question: The number of erythrocytes in 1 cubic millimeter of blood is ____.

Indicate the answer choice that best completes the statement or answers the question: The leukocytes that provide immunity for the body by developing antibodies and protect against the formation of cancer cells are ____.

Indicate the answer choice that best completes the statement or answers the question: An inherited disease that occurs almost exclusively in males and in which the blood is unable to clot is ____.

Indicate the answer choice that best completes the statement or answers the question: The bright red color of blood indicates ____.

Which of the following is not a risk factor that increases the incidence of hypertension?

The largest artery in the body is ____.

An inflammation of a vein near the skin surface, with the formation of a clot is ____.

The chamber of the heart that receives deoxygenated blood as it returns from body cells is the ____.

A normal leukocyte count per cubic millimeter of blood is ____.

The valve between the left atrium and left ventricle that prevents blood from flowing back into the left atrium is the ____.

The chamber of the heart that receives oxygenated blood as it returns from the lungs is the ____.

The blood vessels that are more muscular and elastic than are the other blood vessels are the ____.

The blood cells that contain hemoglobin are the ____.

The valve between the right atrium and right ventricle that prevents blood from flowing back into the right atrium is the ____.

The blood vessels that contain valves to prevent blood from flowing in a backward direction are the ____.

A normal thrombocyte count per cubic millimeter of blood is ____.

The muscle layer of the heart is the ____.

The blood cells that fight infection are the ____.

Dilated, swollen veins that have lost elasticity and cause stasis, or decreased blood flow, are called ____.

The blood vessels that carry blood away from the heart are the ____.

How much blood does the average adult have in his or her body?

Which acid is required for the development of mature erythrocytes?