HBS UNIT 3 24-25

What role do valves play in the heart?

• Valves help in pumping blood out of the heart.

• Valves prevent the backflow of blood.

• Valves oxygenate the blood.

• Valves regulate the heartbeat.

What is the largest artery in the body?

• Aorta

• Pulmonary artery

• Carotid artery

• Femoral artery

Tiny branches connecting vein and artery vessels are called:

• Arterioles

• Venules

• Capillaries

• Lymphatics

Veins popping out on the back of legs that typically develop in older people or those who stand long periods of time during their careers are called:

• Varicose veins

• Spider veins

• Deep vein thrombosis

• Arterial veins

True/False: The flow of blood around the body ensures that essential nutrients are delivered and wastes are moved away for disposal. At the center of this system is the amazing pump, the human heart.

• True

• False

True/False: A series of tubes, or vessels, serve as the highways for the transportation of blood. Arteries are responsible for carrying blood back to the heart and veins are responsible for returning blood away from the heart.

• True

• False

True/False: Pulmonary circulation moves blood to the lungs to pick up oxygen and back to the heart so this oxygenated blood can be delivered.

• True

• False

True/False: Systemic circulation pumps oxygen rich blood to the body and returns deoxygenated blood back to the heart to be sent out for refueling.

• True

• False

True/False: The pulmonary arteries move blood from the heart (the right ventricle) to the lungs to pick up carbon dioxide.

• True

• False

True/False: Pulmonary Vein collects the oxygenated blood and carry it from the lungs back to the heart.

• True

• False