10 notecards = 3 pages (4 cards per page)
Describe the size, shape, location, and orientation of the heart in the thorax.
Size: fist, weighs less than a pound
Coverings of the heart.
Structure: superficial part of double-walled sac surrounding the heart; consists of dense connective tissue
parietal: lines internal surface of fibrous pericardium; attaches to large arteries exiting the heart
between the parietal and visceral layers; slitlike cavity that contains a film of protein-rich fluid
Stroke Volume (SV)
Amount of blood ejected by one contraction of the heart.
End Diastolic Volume (EDV)
Amount of blood in the ventricle at the end of relaxation
End Systolic Volume (ESV)
Amount of blood in the ventricle at the end of contraction
Cardiac Output (CO)
The amount of blood ejected from the heart in one minute
Heart Rate (HR)
The frequency at which the heart beats