Ch. 5 Anatomic Terms Flashcards
endocardium
membrane lining the cavities of the heart
atrium
upper right or left chamber of the heart
epicardium
membrane forming the outer layer of the heart
interatrial septum
division between atria
interventricular septum
division between ventricles
myocardium
heart muscle
pericardium
protective sac surrounding the heart
visceral pericardium
layer closest to heart (visceral = pertaining to organ)
parietal pericardium
outer layer (parietal = pertaining to wall)
pericardial cavity
fluid filled cavity between layers of the pericardium
ventricle
lower right and left chambers of the heart
heart valves
structures within the heart that regulate the one-way flow of blood
aortic valve
valve between the left ventricle and the aorta
mitral or bicuspid valve
heart valve between the left atrium and the left ventricle (cuspis = point)
pulmonary semilunar valve
heart valve from right ventricle to pulmonary artery (luna = moon)
tricuspid valve
heart valve from right atrium to right ventricle
valves of the veins
valves located within the lining of the veins
arteries
vessels that carry blood away from the heart
aorta
large artery branching from the left ventricle
arterioles
small arteries
capillaries
tiny vessels that join arterioles to venules
venules
tiny veins
veins
vessels that carry blood toward the heart
systemic circulation
circulation of the blood throughout the body
coronary circulation
circulation of blood to the heart muscle tissue
pulmonary circulation
circulation of blood to the lungs for gas exchange
