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Samuel Merritt University N136 - Managing Care of Adults 2 MCA II - Exam 3 Content Guide: HTN/Vascular Disorders Questions With Complete Solutions$12.99
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Systemic vascular resistance (SVR) Correct Answers The force
...... ......
opposing the movement of blood within the blood vessels.
The radius of the small arteries and arterioles is the principal
factor determining vascular resistance. A small change in the
radius of the arterioles creates a major change in the SVR.
Ex:
If SVR ↑ and CO remains constant or ↑, arterial BP ↑.
Baroreceptors Correct Answers Special receptors located in the
...... ......
carotid arteries and the aortic arch; constantly monitor BP
fluctuations.
,BP ↓ → SNS ↑ → ↑ CO & SVR → BP ↑
BP ↑ → SNS ↓ or PNS ↑ → ↓ HR → ↓ CO → BP ↓
In chronic HTN the baroreceptors become adjusted to elevated
levels of BP and recognize this level as "normal."
inotropic Correct Answers force of contraction
...... ......
dromotropic Correct Answers speed of conduction
...... ......
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