Lung diffusion is your ability to pass oxygen into the blood from the air sacs of the lungs, and pass carbon dioxide (CO2) back into the lungs from the blood.
The universal trigger for fear is the threat of harm, real or imagined. This threat can be for our physical, emotional or psychological well-being. While there are certain things that trigger fear in most of us, we can learn to become afraid of nearly anything.
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Renin. Renin is a hormone that is produced by the kidneys and it acts to elevate the blood pressure. ... Angiotensin II causes blood vessels to constrict, which raises the blood pressure. It also causes the kidneys to retain more sodium and water, which raises the volume of the blood
