The AV Node is the heart’s original ‘pacemaker”.

___________ refers to the thickness of blood components that resists flow, and affects vascular resistance:

Calculate Mean Arterial Pressure from a diastolic pressure of 121 mm Hg and a systolic pressure of 208 mm Hg:

The closing of the semilunar valves:

Which part of the intrinsic conduction system delays the impulse briefly before it moves on to the ventricles (HINT–it also can act as a secondary pacemaker of the heart)?

FIND:   Cardiac Output, given that EDV=266 mL;  ESV=104 mL; and HR=110 beats per  minute:

At REST, most of our blood volume lies in the:

Increase in the size of an organ:

Instrument used to view inside:

Under the tongue: