Card Set Information
what is the average heart rate?
70-75 beats per min
What is the average cardiac cycle?
When a complete cardiac distole is done, the vessels are?
The stethascope measures?
the opening and closing of the AV and semilunar valves
What is a heart murmur?
the back flow of blood
Where does the stimulus come from that demands the heart to beat?
the heart (intrinsic stimulus) (myogenic)
where is the sinoatrial node located?
in the upper wall of the left atrium
What is rhythmicity?
heart producing rhythm
the conduction system is located
in the ventricles
the septum between the atrium and the ventricles?
the terminal end of the conduction system?
what is the rate of the AV node?
what is a heart block?
impulses generated by the S.A. node that doesnt get to the A.V. node
two parts of dual innovation?
sympathetic and parasympathetic
Parasympathetic emits this to slow down heart rate?
Sympathetic emits this to speed up heart rate?
vagus nerve carries what to the heart?
sympathetic impulses come from what to get to the heart?
The medulla oblongala is?
area in the brain that contains many involuntary actions and cardiac centers
the adrenal cortex refers to?
outer part of the adrenal gland
the adrenal medulla refers to ?
the middle portion of the adrenal gland
changes in the electrical impulse in the heart that can be detected on the surface of the body
P wave refers to ?
the electrical activity produced in the atrium of the heart
Cardiac output is?
the amount of blood pumped out in a given minute
what is the stroke volume?
the volume of blood pumped with one beat
the ejection fraction is
SV/EDV (stroke vol / end diastolic vol)