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What is the force the heart has to push against? -CORRECT ANSWER Afterload
What is the point of the heart that points inferiorly toward the left hip? -CORRECT
ANSWER apex of the heart
The top chambers of the heart that are separated by interatrial septum are called? -
CORRECT ANSWER atria
This is located b/t the atria and ventricles -CORRECT ANSWER Atrioventricular valve
AKA: AV valve
The valves of the heart are..... -CORRECT ANSWER flaps of fibrous tissue firmly
anchored to the Anuli fibrosi Cordis. Prevent backflow.
What is valve b/t the right atrium and right ventricle? -CORRECT ANSWER Tricuspid
valve
What is the valve b/t the left atrium and left ventricle? -CORRECT ANSWER Bicuspid/
Mitral valve
What do you call the broad flat part of the heart that points toward the right shoulder? -
CORRECT ANSWER base of the heart
The amount of blood the heart pumps in 1 min is called? and what is its normal? -
CORRECT ANSWER Cardiac Output
4-8 L
These are tendens that hold the AV valve in place so it prevents it from swinging
upward into the atria.... -CORRECT ANSWER Chordae Tendineae
This drug effect on the heart will change the heart rate? -CORRECT ANSWER
Chronotropic effect
A drug that has chronotropic effects can be _______ or ________? -CORRECT
ANSWER positive or negative
A positive chronotropic drug effect will _____ hr? -CORRECT ANSWER increase
, A negative chronotropic drug effect will _____ hr? -CORRECT ANSWER decrease
This is the resting phase of the heart? -CORRECT ANSWER Diastole
What is the inner most layer of the heart called? It is continous with the inner layer of
blood vessels. -CORRECT ANSWER endocardium
What is the outer most layer of the heart called? Its the outer surface and great vessels.
-CORRECT ANSWER Epicardium
What drug effect effects the strength of the contractions of the heart? -CORRECT
ANSWER inotropic effect
A positive inotropic effect increases _______ of heart. -CORRECT ANSWER strength
A negative ______ effect decreases strength of heart. -CORRECT ANSWER inotropic
What is the middle muscle layer of the heart? It consists of bands of muscle fibers that
contract creating the pumplike action needed to pump blood through. -CORRECT
ANSWER Myocardium
This is the outer covering layer? A double wall sac around the heart. -CORRECT
ANSWER Pericardium
The primary Function of the Pericardium is to? -CORRECT ANSWER PROTECT the
heart
ANCHOR heart to structures
PREVENT heart from overfilling
Refers to the defree that the myocardial fiver is stretched prior to contraction. also
related to volume, when the heart chambers fill with blood? -CORRECT ANSWER
Preload
Where is the preload best measured at? -CORRECT ANSWER vena cava
You have two semilunar valves what are they called? -CORRECT ANSWER
Pulmonary semilunar and Aortic semilunar
The pulmonary semilunar valve is the ______ tract of the right ventricle? -CORRECT
ANSWER outflow
The aortic semilunar valve is the outflow tract of the the ____ ventricle? -CORRECT
ANSWER left
During _____ phase the semilunar valves prevent back flow of blood into the ventricles?
-CORRECT ANSWER Diastole