test 2: ch5 other terms Flashcards
system that maintains the distribution of blood throughout the body
CV or circulatory system
name all parts of the CV system:
hearth and blood vessels
transports deoxygenated blood from right side of heart to lungs where oxygen and carbon dioxide are exchanged; then carries oxygenated blood back to left side of hearth
pulmonary circulation
transports oxygenated blood from left side of heart to cells of body and then back to right side of heart
systemic circulation
the three layers of the heart:
endocardium, myocardium, epicardium
inner layer of the heart lining the heart chmabers
endocardium
thick, muscular middle layer of the heart
myocardium
outer layer of the heart
epicardium
the heart has 2 _______ and 2 ______
atria, ventricles
what are the four valves of the heart?
tricuspid valve, pulmonary valve, mitral valve, aortic valve
valve that controls the opening between the right atrium and the right ventricle
tricuspid valve
valve that looks like a half moon, prevents blood that has been ejected into the pulmonary artery from returning to the right ventricle as it relaxes
pulmonary valve
also called the bicuspid valve, prevents blood from going back up into the left atrium
mitral valve
a semilunar valve that is located between left ventricle and aorta, blood leaves left ventricle through this valve and cannot return to the left ventricle
aortic valve
branch of vena cava that drains blood from chest and upper body
superior vena cava
