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Systole is the ________ phase of the cardiac cycle.
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Updated 216 days ago|2/23/2016 11:13:56 AM
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Systole is the CONTRACTION phase of the cardiac cycle.

Added 216 days ago|2/23/2016 11:13:56 AM
This answer has been confirmed as correct, not copied, and helpful.
The brain is divided into the
Weegy: The brain can be divided into three basic units: the forebrain, the midbrain, and the hindbrain. (More)
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Every ________, nerve impulses stimulate the breathing process, or ventilation, which moves air through a series of passages into and out of the lungs.
Weegy: Approximately every second, nerve impulses stimulate the breathing process directly. Individual nerve impulses related to respiration occur multiple times per second, depending on respiratory rate. (More)
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Asked 12/24/2012 12:35:17 AM
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An instrument called a ________ is used to measure the volume of air that moves into and out of the lungs.
Weegy: The instrument that measures the volume of air doing into the lungs is a spir9ometer see: (More)
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Asked 12/24/2012 12:29:18 AM
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What is the exchange of gases between the blood and tissue cells?
Weegy: The exchange of gases between the blood and tissue cells is called internal respiration. (More)
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Asked 12/24/2012 12:24:21 AM
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