cardiovascular system: the heart Flashcards
Does the right atrium receive deoxygenated or oxygenated blood ?
deoxygenated
The pulmonary veins bring blood to the _____ ?
left atrium
how many chambers does the heart have ?
four
which cavity is the heart in ?
thoratic cavity
where does the superior vena cava collect blood from ?
head, neck, thorax, and upper etremity
where does the inferior vena cava collect blood from ?
abdomen and lower etremity
where do pulmonary veins bring blood to ?
from the lungs to the left atrium
what is the superficial extension on the atrium called ?
the auricle
what do ventricles do ?
pump blood out of the heart
where does the right ventricle pump blood to ? and how ?
the lungs via the pulmonary trunk
where does the left ventricle pump blood to ?
the aorta then body cells
what divides the 2 ventricles ?
the interventricular septum
what is the double layered membrane that surrounds the heart ?
the pericardium or pericardial sac
what is the pericardial cavity filled with ?
a lubricating fluid
what happens when excessive fluid build up in the pericardial space?
it prevents pressure which means less blood will be ejected from the heart
