Structure & Function of the Cardiovascular System
What is the heart?
A muscular organ that pumps blood throughout the body
What are red blood cells?
These cells carry oxygen using hemoglobin.
What are arteries?
These vessels carry blood away from the heart.
What is systolic pressure?
This term describes pressure while the heart is contracting.
What is atherosclerosis?
This condition develops when plaques restrict blood flow in vessels.
What are blood vessels?
These tubes carry blood throughout the body
What are platelets?
These cells help your body form blood clots.
What are veins?
These vessels carry blood toward the heart.
What is diastolic pressure?
This pressure occurs when the heart relaxes between beats.
What is HDL, the “good” cholesterol?)
This type of cholesterol removes cholesterol from the bloodstream.
What is the respiratory system?
This system works closely with the cardiovascular system to exchange gases.
What are white blood cells?
These blood cells defend against infection.
What are capillaries?
These tiny vessels allow gas and nutrient exchange.
What is hypertension?
This condition describes chronic high blood pressure.
What is LDL, the “bad” cholesterol?
This type of cholesterol can build up in artery walls.
What are atria?
These heart chambers receive blood
What is plasma?
Blood is made of cells and this liquid component.
What is the pulmonary circuit?
This circuit sends blood from the heart to the lungs and back.
What cells regulate heartbeat / heart rate?
Pacemaker cells regulate this continuous activity of the heart.
What are Avoid tobacco, Be active, Choose healthy foods?
Name the three ABCs of heart health.
What are ventricles?
These chambers pump blood away from the heart
What is the aorta?
This major artery carries oxygenated blood to the body.
What is the systemic circuit?
This circuit sends blood between the heart and the rest of the body.
What is a heart attack?
This event happens when blood flow to heart tissue becomes blocked.
What are risk factors for poor heart health?
These lifestyle factors — including obesity, smoking, and inactivity — increase the risk for cardiovascular disease.