ANSWERS
cardiovascular system - (answer)-ALSO called the circulatory system
-made up of the heart, blood vessels, the blood, and lymphatic system.
-waste removal, nutrient distribution, communication, protection.
heart - (answer)-composed of cardiac muscle tissue
-4 muscular chambers of heart: right and left atria and the right and left ventricles
-regulates blood flow through a double-loop system, pumping oxygenated blood to body tissue and
deoxygenated blood to the lungs
atria - (answer)-2 of them; left and right
-chambers of the heart that receive blood returning to the heart from other areas of the body
ventricles - (answer)-chambers of the heart that collect and expel blood from the heart
-2 of them; left and right
atrioventricular valves - (answer)valves that separate the atria and ventricles in the heart
tricuspid valve - (answer)separates the right atrium and right ventricle
mitral valve (bicuspid) - (answer)-ALSO called bicuspid
-separates left atrium and left ventricle
types of blood vessels - (answer)1. arteries
2. capillaries
3. veins
arteries - (answer)strong, elastic vessels adapted to the high pressure of blood as it leaves the heart
, ATI TEAS CARDIOVASCULAR SYSTEM EXAM 2025 WITH PRACTICE QUESTIONS AND
ANSWERS
arterioles - (answer)-smaller branches of arteries
-supply blood to the capillaries
capillaries - (answer)-smallest blood vessels
-consist of only a single layer of epithelial tissue, which allows substances and gases to be exchanged b/t
the blood and the cells of tissues via diffusion
-receive blood from the arterioles and return it to the venules
aorta - (answer)-largest artery in the body!
-the artery that carries blood pumped from the LEFT ventricle of the heart into systemic circulation
diffusion - (answer)-process by which substances and gases are exchanged across a membrane; in this
case, blood and veins
-substances tend to diffuse from areas of high concentration to areas of low concentration
venules - (answer)-blood returns to the heart from the capillaries via venules, which merge to form veins
-vessels that receive blood from capillaries
veins - (answer)-walls of veins are thinner than those of arteries b/c veins do not have to carry blood
under high pressure
-contain valves to prevent the back flow of blood
-vessels that return blood to the heart
inferior vena cava - (answer)-largest vein in the body!
-brings deoxygenated blood back to the heart
-runs from heart to down body