Heart Flashcards
The _____ valve guards the opening between the right ventricle and the pulmonary trunk.
pulmonary semilunar
The thickest layer of the heart wall is the _____.
myocardium
The _____ node is the natural pacemaker of the heart.
SA
Blood from the upper extremities and head returns to the heart via the _____ Vena Cava.
superior
layer of the pericardium continuous with the lining of the great vessels.
endocardium
branch of the right coronary artery
posterior interventriculara.
vein into which all cardiac veins empty
coronary sinus
Pulmonary _____ empty into the left atrium.
veins
___ carry blood away from the heart
arteries
epithelial lining of the heart cavity that is continuous with the lining of the vessels
endocardium
middle layer of the heart
myocardium
The middle layer of the heart is formed mostly by ___ tissue.
cardiac muscle
The ___ forms the apex of the heart.
left ventricle
The ____ of the heart receives oxygen-poor blood from the SVC and IVC.
right atrium
mitral valve
bicuspid
The ___ valve guards the opening between the right ventricle and the pulmonary trunk
pulmonary semilunar
The coronary arteries are direct branches of the ___.
ascending aorta
The ___ is a fetal opening between the 2 atria.
foramen ovale
remnant of a fetal structure that allows blood to flow from the pulmonary trunk directly into the aorta, bypassing the lungs
ligamentum arteriosum
listening to heart sounds generated by movement of the valves
auscultation
The ___ artery is a direct branch of the left coronary artery.
anterior interventricular
The coronary sinus empties blood into the ____.
right atrium
continuous interconnection between 2 arteries
anastomosis
relaxation of the ventricles
diastole
