NURS 3366 EXAM 3 VERIFIED QUESTIONS &
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Venous side, *DEOXYGENATED flow is going IN from all veins & tissues from
the body
right side of the heart
arterial side, *OXYGENATED flow is going OUT via aorta to all arteries and
tissues in the body
left side of the heart
trace the forward flow of the blood.
right atrium → tricuspid valve → right ventricle → pulmonic valve → pulmonary
artery → pulmonary arterioles → pulmonary capillaries (gas exchange w/ aveoli
occurs here) → pulmonary venules → pulmonary veins → left atrium → mitral
valve (bicuspid valve) → aortic valve → aorta → arterioles of tissues → capillaries
(gas exchange w/ tissue occurs) → venules → veins → inferior vena cava or
superior vena cava → right atrium
the aorta will branch out to three places after receiving oxygenated blood, list these
places.
coronary arteries, up to brain tissues via carotids, tissue beds of remainder of body
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thick-walled, muscled vessels that accept oxygenated blood from the heart and
circulate it to tissue beds all over the body.
arteries
thin walled vessels; take deoxygenated blood from tissue beds all over body back
to right side of the heart.
veins
what are the only arterial vessels that carry deoxygenated blood?
pulmonary artery & arterioles
what are the only venous vessels that carry oxygenated blood?
pulmonary venules and veins
cardiovascular refers to
heart & its vessels
peripheral vascular describes
vessels outside of heart
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circulatory system is often used to describe
cardiovascular & peripheral vascular systems
what is the goal of the electrical and mechanical functions of the heart?
create effective cardiac output (CO)
cardiac output (CO)
average amount of blood left ventricle ejects (& is therefore in circulation) per
min.
stroke volume
amount of blood ejected per CONTRACTION. (systole)
what is the normal amount of cardiac output?
4-6 L/min
S&S of good cardiac output are linked with good perfusion. state those S&S.
normal BP, pulses, capillary refill, mentation, skin color & warmth
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besides good cardiac output, what is the other part of having good perfusion?
healthy arteries (good vasomotor tone & patent lumen)
if HR (heart rate) x SV (stroke volume) = cardiac output, cardiac output can
improve or deteriorate by?
I. changes in HR (& rhythm)
II. changes in SV (contractility, preload, afterload)
changes in stroke volume are affected by what three conditions?
contractility (pump action), preload (blood return to heart), afterload (arterial
resistance to cardiac blood flow)
by place specialized patches on the skin that act as negative and positive poles, the
electrical pathway that generates cardiac contractions can be captured in the form
of an
electrocardiogram
heart rate (HR)
rate of impulses generated by the SA node & traveling throughout the heeart.