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GMS6530 Final Exam Questions With Complete Solutions
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GMS6530 Final Exam Questions With Complete Solutions
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GMS6530 Final Exam Questions With Complete SolutionsWhat are the three layers of the heart?
epicardium, myocardium, endocardium
What are the two upper chambers of the heart?
atria
What is the name of the partition between the right and left
atrium?
interatrial septum (IAS)
What is the name of the partition between the right and left
ventricle?
interventricular septum (IVS)
What kind of tissue makes up the heart valves? What is the
purpose for this?
the heart valves are made up of dense connective tissue
surrounded by epithelium; this prevents blood from flowing
backwards
What are the two types of valves?
atrioventricular valves and semilunar valves
What is the primary function of the semilunar valves?
to prevent blood in the arteries from flowing back into the heart
,What are the names of the four heart valves?
aortic semilunar, pulmonary semilunar, tricuspid, bicuspid
(mitral)
T/F: Blood flows through the heart from areas of higher pressure
to lower pressure
true
What processes control the movement of blood through the
heart?
valves opening/closing; myocardium relaxing/contracting
T/F: In the pulmonary capillaries, blood loses CO2 and gains O2
true
What is the 10 step pathway of blood flow throughout the heart?
1. right atrium
2. right ventricle
3. pulmonary trunk/arteries
4. pulmonary capillaries
5. pulmonary veins
6. left atrium
7. left ventricle
8. aorta and systemic capillaries
9. systemic capillaries
10. superior vena cava/inferior vena cava/coronary sinus
T/F: In systemic capillaries, blood loses O2 and gains CO2
, true
Which side of the heart is oxygenated? Deoxygenated?
right = deoxygenated; left = oxygenated
How does blood flow from the right atrium to the right
ventricle?
through the tricuspid valve
How does blood flow from the right ventricle to the pulmonary
trunk?
pulmonary valve
How does blood flow from the left atrium to the left ventricle>
bicuspid valve
How does blood flow from the left ventricle to the aorta?
aortic valve
What begins cardiac excitation?
SA node
Where is the sinoatrial node located?
in the right atrial wall
Where is the atrioventricular node located?
interatrial septum
What happens to action potentials at the AV node? Why?
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