The degree of muscle stretch due to the volume of blood in the heart is the:
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Increased stretching of muscle fibers due to an increase of…
Increased stretching of muscle fibers due to an increase of blood in the heart will _______ the strength of the contraction.
If blood volume decreases, stroke volume decreases. Heart r…
If blood volume decreases, stroke volume decreases. Heart rate will therefore:
What is the purpose of the specialized fetal heart structure…
What is the purpose of the specialized fetal heart structures?
Match the heart sound to the explanation.
Match the heart sound to the explanation.
The cardioacceleratory center is part of the __________ and…
The cardioacceleratory center is part of the __________ and __________heart rate.
During the cardiac cycle, after the period of relaxation, wh…
During the cardiac cycle, after the period of relaxation, which area contracts first?
The chamber that is the last stop for deoxygenated blood bef…
The chamber that is the last stop for deoxygenated blood before going to the lungs is the:
Which of the following is not true of pacemaker cells?
Which of the following is not true of pacemaker cells?
Without vagus nerve communication with the heart, the averag…
Without vagus nerve communication with the heart, the average heart rate would be _____.