Blood Vessels
What type of blood vessels carries blood away from the heart
Arteries
What is the general name for the movement of blood throughout the body?
Circulation
How many chambers does the human heart have?
4
What is a common disease where blood flow to part of the heart is blocked?
Myocardial infarction
Heart Attack
The atria are the “upstairs” chambers of the heart and these parts are the “downstairs” chambers.
Ventricles
Why type of blood vessels has thin walls and allows the exchange of oxygen, nutrients and waste with body cells?
Capillaries
What are the 2 types of circulation in the circulatory system?
Systemic Circulation and Pulmonary Circulation
Name the 2 large veins that bring deoxygenated blood into the right atrium.
Superior Vena Cava, Inferior Vena Cava
What condition is caused by a build up of fatty deposits in arteries that can reduce blood flow?
Atherosclerosis
What wall separates the left side and right side of the heart?
Septum
What blood vessels carry blood back to the heart and often have valves to prevent backflow?
Veins
Describe the path of oxygenated blood starting at the lungs and ending at the body.
Oxygenated blood goes from the lungs back into the heart into the left atrium, into the left ventricle, moving through the aorta into the body.
How many valves are in the heart and why are they important?
4 valves; they prevent blood from flowing backward in the heart
Name one way people can reduce their risk of circulatory system diseases.
regular exercise, healthy diet low in saturated fats, not smoking
What parts act like doors that control blood flow in the heart?
Valves
Name the large artery that carries oxygen-rich blood from the left ventricle to the body
Aorta
Describe the path of deoxygenated blood starting at the body cells and ending at the lungs.
Deoxygenated blood leaves the cells and goes to the heart entering through the vena cava into the right atrium. It moves into the right ventricle, then out of the heart to the lungs.
What is a pulse?
The squeezing of the heart muscles (2 squeezes) as blood is pumped through it.
What is high blood pressure and why is it dangerous?
High blood pressure means blood exerts too much force on artery walls; it can damage arteries and the heart over time, increasing risk of heart attack and stroke
What organ removes waste from blood?
kidney
Explain how the structure of arteries and veins relates to their functions
Arteries have thick, muscular walls to handle high pressure and carry blood away; veins have thinner walls and often valves to prevent backflow as blood returns to the heart
List at least 4 different materials that will move in the blood throughout the body.
Gases-oxygen, carbon dioxide; water; nutrients; energy; waste; hormones
How many times will your heart beat in your lifetime?
2.5 billion times
Explain how blocked coronary arteries can affect the heart’s function and describe one treatment option doctors might use
Blocked coronary arteries reduce oxygen supply to heart muscle, which can weaken or damage the heart and cause chest pain or heart attack; treatments include lifestyle changes, medications, angioplasty (opening the artery with a stent), or bypass surgery
The beating sound your heart makes comes from
Valves closing