The ______ spread throughout the ventricles to conduct action potentials directly to the ventricular myocardial cells.

Identify three ways in which a ventricular myocardial action potential differs from a SA Nodal action potential.  For each of the three ways, make sure you state the difference between the two. 

Any substance (for example, epinephrine) that increases the force of contraction of the heart is said to have a ______ effect on the heart.  Be specific.

The _______ are the blood vessels primarily responsible for variably distributing blood flow to different organs.

A skeletal muscle fiber type important in power activities is the _______.  Be specific.

A person has a blood pressure of 129/77:             a. What is the value of the diastolic pressure and units? ______      b. What is the value of the mean arterial pressure and units? _______  Write equation, show all work, and include units.  Round the answer to two decimal places.      c. What is the value of the systolic pressure and units? ______     d. Would any sound be heard when the pressure in an external cuff around the arm was 71 mm Hg?  Yes or no? ____     e. Would any sound be heard when the pressure in an external cuff around the arm was 115 mm Hg?  Yes or no? ____     f. What is the value and units of the pressure at which the sound becomes laminar? _____

_______ muscle fibers are red and are less likely to fatigue.  Be specific.

_______ is a condition where a parasite invades lymphatic vessels and blocks lymphatic drainage.

To determine the ejection fraction, one would divide _________ and multiply by 100%. 

In ventricular myocardial cells, calcium entry is responsible for producing the ________ phase of the action potential.