circulatory system Flashcards
what does the cardiovascular system do?
transports oxygen, nutrients, hormones, and waste products through the body
what is the process of the circulatory system?
pumps blood from the heart to the lungs to get oxygen. the heart then sends oxygenated blood through the arteries to the rest of the body. the veins carry oxygen-poor blood back to the heart back to the heart to start the process again.
what are common diseases and conditions of the circulatory system?
hypertension (high bp).
atherosclerosis (hardening of the arteries).
coronary artery disease (blood vessels are blocked or narrowed).
heart failure.
arrhythmias (irregular heart rate)
what waste products does the circulatory system help your body get rid off?
carbon dioxide from respiration.
other chemicals by products from your organs
waste from things you eat and drink
what is the process of oxygenated blood getting around the body?
the right ventricle sends low oxygenated blood to the lungs, travelling through the main pulmonary artery.
blood cells pick up oxygen in the lungs.
pulmonary veins carry the oxygenated blood from the hearts left atrium.
the left atrium sends the oxygenated blood into the left ventricle.
what is the role of the veins?
carry deoxygenated blood and carbon dioxide back to the heart which sends blood to the lungs
what does systemic circulation provide?
oxygenated blood to all body tissues.
what does pulmonary circulation provide?
allows for exchange of gases in the lungs.
it carries deoxygenated blood from the right side of the heart to the lungs were oxygen is picked up.
what does coronary circulation ensure?
the heart muscle receives the necessary oxygen and nutrients for its function
what are the 3 main parts of the circulatory system?
heart, blood vessels and blood.
what do valves do?
prevent the backflow of blood
where does the heart receive blood into?
deoxygenated blood goes into the right atrium.
after the heart receives blood in the right atrium where does it go?
pumps it to the lungs for oxygenation through the right ventricle.
after the lungs where does oxygenated blood go?
into the left atrium and to be pumped around the body through the left ventricle.
what last section of the heart does oxygenated blood get pumped through to the rest of the body
left ventricle.
what does the superior vena cava do?
collects blood from the upper body.
what does the inferior vena cava do?
collects blood from the lower body.
what valve does the blood go through to get from the right atrium to the right ventricle?
tricuspid valve
what artery is deoxygenated blood pumped to the lungs by?
pulmonary artery.
what vein is oxygenated blood returned to the heart by from the lungs?
pulmonary vien
from the left atrium what valve does oxygenated blood flow through to get to the left ventricle?
mitral (bicuspid valve)
what artery is used to pump blood to the rest of the body from the left ventricle?
aorta.
what are the 3 types of blood vessels?
arteries, veins and capillaries.
what do arteries do?
carry oxygenated blood away from the heart and towards the bodys tissues and organs.
which artery carrys deoxygenated blood?
pulmonary artery
what are arteries characteristics?
thick elastic walls.
to maintain blood pressure and the smooth flow of blood.
what do veins do?
carry deoxygenated blood back to the heart from the organs.
what are veins characteristics?
thin walls and low pressure