Term
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Definition
| The force exerted on the walls of a vessel by the blood. |
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Term
| Increased volume raises b.p., decreased volume lowers it. |
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Definition
| How does blood volume affect b.p.? |
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Term
| Na+ is salt and causes our bodies to retain water to dilute the salt. This volume increase raises b.p. |
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Definition
| How does a high Na+, sodium, diet affect your b.p.? |
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Term
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Definition
| What is the friction that blood experiences against the vessel wall called? |
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Term
| arteries are clogged with cholesterol or plaques. Also, b/c the vessels have constricted (reduced their diameter) |
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Definition
| Why would peripheral resistance increase? |
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Term
an increase/decrease in WBC's or RBC's;
an increase in plasma proteins (antibodies, hormones.. . ) |
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Definition
| What factors may change the viscosity of blood? |
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Term
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Definition
| The pressure that's created when the ventricles relax |
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Term
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Definition
| the stretch and recoil of an artery wall that can be felt through the skin |
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Term
| More blood entering the heart, will cause more blood to exit the heart. |
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Definition
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Term
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Definition
| The amount of blood that is released from the heart with one ventricular contraction. |
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Term
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Definition
| If stroke volume increases, blood pressure _________ |
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Term
| heart rate and stroke volume will decrease, so b.p. will go down |
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Definition
| If the medulla increases parasympathetic stimulation to the heart, what will happen to b.p.? |
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Term
| arterioles will dilate and b.p. will drop |
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Definition
| If the medulla's vasomotor center inhibits sympathic stimulation to arterioles, the b.p. will _________ |
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Term
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Definition
| A blood pressure reading is 115/75. Which number is the diastolic reading? |
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Term
| cold can cause vasocontriction of arterioles, which would cause b.p. to rise. |
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Definition
| How does temp. affect b.p.? |
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Term
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Definition
| The pressure that's generated when the ventricles contract |
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Term
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Definition
| stretch receptors in the aorta and carotid arteries |
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Term
| When blood is thicker or more viscous the b.p. goes up? |
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Definition
| HOw does viscosity affect b.p.? |
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Term
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Definition
| the cuff that measures b.p. |
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Term
| big arteries; the aorta is highest |
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Definition
| Which vessels are under the greatest pressure? |
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Term
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Definition
| chronic, reoccuring high blood pressure |
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Term
| obesity, high salt diet, stress, arteriosclerosis(hardening of arteries) |
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Definition
| What are some factors that contribute to hypertension? |
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Term
| cardiac output with heart rate changes, and peripheral resistance with blood vessel constriction/dilation. |
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Definition
| What are two parameters the body manipulates to maintain homeostasis of b.p.? |
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Term
| The b.p. would drop as the blood volume goes down. |
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Definition
| If the body was hemmorhaging blood, what would happen to the b.p.? |
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Term
| An increase in peripheral resistance will raise the b.p. |
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Definition
| How does peripheral resistance affect b.p.? |
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Term
| Sympathetic impulses from vasomotor center would increase vasoconstriction of vessels and raise the b.p. |
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Definition
| How could the body try to maintain a constant b.p. during an accident where a person is losing blood? |
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Term
| large veins like the vena cava |
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Definition
| Which blood vessels have the lowest b.p.? |
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Term
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Definition
| As the distance from the left ventricle increases, the b.p. _______________ |
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