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DAANCE LATEST 2021 EXAM WITH COMPLETE 450 + STUDY QUESTIONS AND VERIFIED ANSWERS GRADED A+ VERISED AND UPDATED 2024/2025 DAANCE LATEST 2021 EXAM WITH COMPLETE 450 + STUDY QUESTIONS AND VERIFIED ANSWERS GRADED A+ VERISED AND UPDATED 2024/2025 $15.49
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DAANCE LATEST 2021 EXAM WITH COMPLETE 450 + STUDY QUESTIONS AND VERIFIED ANSWERS GRADED A+ VERISED AND UPDATED 2024/2025 DAANCE LATEST 2021 EXAM WITH COMPLETE 450 + STUDY QUESTIONS AND VERIFIED ANSWERS GRADED A+ VERISED AND UPDATED 2024/2025
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Course
DAANCE
Institution
DAANCE
DAANCE LATEST 2021 EXAM WITH COMPLETE 450 +
STUDY QUESTIONS AND VERIFIED ANSWERS GRADED A+
VERISED AND UPDATED 2024/2025
DAANCE LATEST 2021 EXAM WITH COMPLETE 450 +
STUDY QUESTIONS AND VERIFIED ANSWERS GRADED A+
VERISED AND UPDATED 2024/2025
Subacute Bacterial Endocarditis (SBE)
Infectious Endocarditis.
Myocardium
the middle and thickest layer of the heart wall, composed
of cardiac muscle.
How many quarts of blood does the heart pump per
minute?
5 quarts.
How many chambers does the heart have?
4 chambers: 2 Atria and 2 Ventricles
Atria
Upper chambers of the heart that receive blood.
Left Atrium
receives blood from the lungs via the pulmonary vein and
is oxxygen-rich
Right Atrium
,receives blood from the peripheral circulation 9the body)
and is oxygen-poor.
Ventricles
Lower chambers of the heart that receive blood from the
atria. Are larger chambers and have thicker walls.
Right Ventricle
sends deoxygenated blood to the lungs.
Left Ventricle
sends oxygenated blood into the body or the peripheral
circulation. This heart muscle is thicker and more powerful
and pumps with the greatest force of the four chambers.
Right side of the heart
Deoxygenated blood.
Left side of the heart
Oxygenated blood.
Three sources that the right atrium receives blood
from:
1. Superior vena cava: above the heart.
2. Inferior vena cava: below the heart.
3. Coronary sinus: veins of the heart muscle itself
Arteries
,All vessels leading away from the heart.
Veins
All vessels leading to the heart.
Pulmonary Artery
One of two arteries (branches of the pulmonary trunk) that
carry venous blood from the heart to the lungs. Oxygen-
depleted blood.
Pulmonary Veins
The veins that return oxygenated blood from the lungs to
the left atrium of the heart. This is the only case in the
body in which veins carry oxygenated blood.
The Heart as a Pump
Begins with both atria contracting simultaneously - forcing
blood into the ventricles, which at this time are relaxed.
This is the diastolic phase. Next, both ventricles contract,
forcing blood either to the lungs or to the body. This is the
systolic phase. After, there is a brief pause in which the
heart is neither contracting nor relaxing; the heart is being
nourished and is filling with blood.
Cardiac Cycle (Heart Rate)
, One contraction and relaxation of the atria and ventricles
followed by a short pause. Usually 60 to 100 beats per
minute.
Heart Rate Below 60 bpm
Bradycardia
Heart Rate Greater Than 100 bpm
Tachycardia
The heart's normal rate and rhythm are controlled by
this
Conduction System
Automaticity
The ability of cardiac muscle cells to contract without
stimulation from the nervous system.
Sinoatrial Node (SA Node)
A microscopic collection of heart muscle fiber where
cardiac rhythm originates; also called the pacemaker of
the heart.
Where is the SA node located?
The junction between the coronary sinus (into which the
superior and inferior vena cava empty) and the right
atrium.
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