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It is a common lay perception that systolic
blood pressure should be 100 plus a person's age. Evaluate the validity of this
statement.
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Calculate the filtration pressure
at a point in a hypothetical capillary assuming a hydrostatic blood pressure
of 28 mmHg, an interstitial hydrostatic pressure of –2 mmHg, a blood COP
of 25 mmHg, and an interstitial COP of 4 mmHg. Give the magnitude (mmHg) and
direction (in or out) of the net filtration pressure.
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Aldosterone
secreted by the adrenal gland must be delivered to the kidney immediately
below. Trace the route that an aldosterone molecule must take from adrenal
to kidney, naming all major blood vessels in the order traveled.
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- People in shock commonly exhibit paleness,
cool skin, tachycardia, and a weak pulse. Explain the physiological basis
for each of these symptoms.
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Discuss why it is advantageous to have baroreceptors
in the aortic arch and carotid sinus rather than in some other location, such
as the common iliac arteries.
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