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62 Cards in this Set

  • Front
  • Back
2/3 of the heart is ____ of the sternum.
left
There are 3 layers of the heart. The ____ is the outermost layer. The ___ is the middle layer. The ____ is the innermost layer.
epicardium
myocardium
endocardium
The _____ is the thickest layer of the heart and is responsible for contraction.
myocardium
____ are the stringy, white looking structures that anchor the AV valves and make sure they open and close properly.
Chordae Tendineae
There are 4 heart valves. The AV valves are the ____ and ____. The semilunar valves are the _____ and _____.
Tricuspid and mitral
Aortic and pulmonic
Blood flow from the body and through the heart is...
SVC/IVC-->R. atrium--> tricuspid valve-->R. ventricle--> pulmonic valve--> pulmonary artery--> lungs--> pulmonic vein--> L. atrium--> mitral valve--> L. ventricle--> Aortic valve--> Aorta--> body
Coronary arteries arise off the base of the _____.
aorta
The ____ deliver oxygen to the heart.
right and left coronary arteries
_____ deliver blood to the coronary sinus and back to the right atrium.
Cardiac veins
The Left main coronary artery divides into the ____ and the _____.
left anterior descending artery and the circumflex artery.
Once the myocardium uses it's oxygen, deoxygenated blood moves back into the right atrium via the ______.
cardiac veins
The ____ is the sequence of events in one heartbeat.
Cardiac cycle
The cardiac cycle is the...
beginning of one heartbeat to the beginning of the next.
During systole the ventricles ____.
contract
During diastole the ventricles _____.
relax
The S1 sound is ____.
Lub
S1 is associated with the closure of the ____ valves.
AV- tricuspid and mitral
The S2 sound is ____.
Dub
S2 is associated with the closure of the _____ valves.
Semilunar- Aortic and Pulmonic
Heart sounds are made by the
closure of the valves.
S1 occurs at the onset of _____.
systole
S2 occurs at the onset of ______.
diastole
During diastole the _____ are closed.
Semilunar valves
During systole the ____ are closed.
AV valves
_____ is the amount of blood pumped by the ventricles in one minute.
Cardiac output
Cardiac output is determined by ___ and ____.
stroke volume and heart rate
Cardiac output averages between ____L/min.
4-8
Cardiac output involves 4 factors:
-Preload
-Afterload
-Contractility
-Heart Rate
Stroke volume is determined by
preload, afterload and contractility
_____ is the stretch of myocardial fibers just before contraction. It is influenced by the blood volume to the right side of the heart.
Preload
Preload is based on _____.
Frank Starling's Law of the Heart
Frank Starling's law of the heart states that the greater the stretch the more forceful the ____. But overstretching the muscle fibers results in _____.
contraction
ineffective contraction
____ is the force the left ventricle has to overcome to pump blood out into circulation.
afterload
When a patient has longstanding HTN, they have problems with _____.
afterload
Afterload is affected by systemic or peripheral vascular _____.
resistance
____ is the ability of the myocardium to contract and relax.
Contractility
Contractility is associated with the availability of _____.
Ca+
Contractility is increased by ____ and therefore is affected by the _____.
Sympathetic nervous system
____ and contractility typically go hand in hand.
Heart rate
____ is regulated by the autonomic nervous system.
Heart rate
The SNS ____ heart rate.
increases
The PNS ____ heart rate.
decreases
___ is the fraction or percent of blood that is ejected by each contraction.
Ejection fraction
Normal EF is _____.
55-70%
Ejection Fraction is normally measured in the ____ because this is the heart's main pumping chamber.
left ventricle
Possible causes of chest pain are
cardiac, musculoskeletal, pleural, gastrointestinal, pulmonary
All CP is considered ____ until that is ruled out.
cardiac
The _____ valve is auscultated at the 2nd ICS RtSB.
Aortic
The _____ valve is auscultated at the 2nd ICS LtSB.
Pulmonic
The _____ valve is auscultated at the 4th ICS LtSB.
Tricuspid
The _____ valve is auscultated at the 5th ICS LtMCL.
Mitral
The Apical pulse or PMI is auscultated at the same area as the _____ valve.
Mitral
Lub is S1 and is auscultated with the closure of the ___ and ___ valves.
mitral and tricuspid
Dub is S2 and is auscultated with the closure of the ___ and ____ valves.
aortic and pulmonic
Normal changes of the CV system with aging include: the baroreceptors become _____ making the patient more prone to orthostatic hypotension and the aorta and other arteries become stiffer causing ______.
less sensitive
increased SBP
Normal changes in the CV system with aging include:
valves and heart chambers thicken putting patient at risk for ____ and veins dilate and valves become incompetent causing ______.
murmurs
edema to lower extremities
Onset of heart disease is earlier in _____.
men
Men have ____ angina symptoms.
typical
Cardiac pain in men is described as
substernal, crushing pain.
Onset of heart disease in women is typically ___ years later than with men.
10
Women often have ____ angina symptoms.
atypical
Cardiac issues in women often present as ____ and ____.
fatigue and nausea.