The Heart Flashcards
What blood is being received from the right hand side of the heart?
Deoxygenated blood.
Arrives through veins.
Blood returning from the body.
Pumped to the lungs.
What blood is being received from the left hand side of the heart?
Blood from lungs.
Oxygenated blood.
Pumped to the body via arteries.
What are the names of the 4 Chambers in the heart?
Right atrium, left atrium.
Right ventricle, left ventricle.
What do the atria do?
Recieve blood.
Contract to push blood through valves.
What do the ventricles do?
Discharge blood.
Left ventricle pumps blood to the body.
Right ventricle pumps blood to the lungs.
Left ventricle more muscular due to pumping to the body.
What are the 4 valves called?
Semi-lunar valve.(aortic valve left atrium, pulmonary valve right atrium).
Bicuspid valve. (Left atrium, left ventricle).
Tricuspid valve. (Right atrium, right ventricle).
What is the purpose of the valves?
Prevent back flow of blood.
What major arteries are there?
Aorta.
Superior vena cava.
Inferior vena cava.
What does the aorta do?
Largest artery in the body.
Pumps blood at high pressure towards the body.
What do the inferior and superior vena cava do?
Superior- brings blood from above the heart. Deoxygenated blood back to right atrium.
Inferior- brings blood from below the heart. Deoxygenated blood back to right atrium
What are the major veins?
Pulmonary veins.
Pulmonary artery.
What are the functions of the pulmonary vein and artery?
Pulmonary vein- goes from lungs to heart, only vein that carries oxygenated blood.
Pulmonary artery- goes from heart to lungs, only artery that carries deoxygenated blood.
What are long term effects of exercise on the cardiovascular system?
Resting heart rate and blood pressure will drop.
Stroke volume and cardiac output will increase.
What are short term effects of exercise on the cardiovascular system?
Increase in stroke volume.
Increase in heart rate.
Increase in blood pressure.
What is vasoconstriction?
The narrowing of blood vessels.
What is vasodilation?
Blood vessels widening to increase blood flow to parts of the body that need nutrients and oxygen.
