Blood vessels in the cardiovascular system are subdivided into
What is systemic and pulmonary systems
100
The suggested healthy blood pressure is around
What is 120/80
100
The heart wall is composed of ______ layers of tissue
What is three
100
The pacemaker cells of the heart are located in the
What is SA node
100
List the order of the conduction pathway in the heart
What is SA node > AV node > Bundle of His > Right/Left Bundle Branches > Purkinje Fibers
200
The left and right pulmonary veins carry blood to the
What is heart (left atrium)
200
Which side of the heart has the highest pressure? Right or Left?
What is left (systemic circuit)
200
List the layers of the heart from superficial to deep
What is pericardium, myocardium, endocardium
200
Two cardiac muscle cells are connected by a gap junction
What is intercalated disc
200
Normal heart sounds are caused by which of the following events?
What is Closure of the heart valves
300
Atrioventricular valves prevent backflow into the
What is atria
300
The suggested healthy blood pressure of the heart is 120/80. These numbers represents what about the heart?
What is systole and diastole
300
Blood from the systemic circulation returns to the heart by the way of the
What is vena cavae
300
If the connection between the SA node and AV node becomes blocked
What is decrease in ventricular contraction
300
The first sound "lub" and second sound "dub" is caused by
What is 1) AV valves closure, 2) semilunar valve closure
400
What is the order of blood flow in the heart
What is
1. Vena cavae,
2. Right atrium,
3. Right ventricle,
4. Pulmonary trunk,
5. Lungs,
6. Pulmonary veins,
7. Left atrium,
8. Left ventricle,
9. Aorta
400
The difference between systole and diastole
What is pulse pressure
400
What two structures are the chordae tendinae attached to?
What is papillary muscle and AV valves
400
This causes an increase in nodal activity and increase of ventricular contraction
What is sympathetic nervous system
400
The second sound "dub" is caused by
What is semilunar valves closure
500
If the papillary muscles fail to contract
What is the atrioventricular valves will not close properly and blood will flow back from the ventricles into the atria
500
What are two differences between how the parasympathetic affects the heart in comparison to the sympathetic nervous system
What is it slows down the heart and only affects the SA and AV node
500
Coronary arteries branches off the ______ to provide blood to the myocardium
What is aorta
500
As a result of the delay at the AV node, cardiac muscle cannot exhibit
What is tetany
500
Listening through a stethoscope, the aortic valve can be heard on the ______ _____ side of the sternum