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7 Cards in this Set
- Front
- Back
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Control of Blood Pressure
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Neural - short term effect
Endocrine - long term effect |
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Control of Blood Pressure
Neural |
Vasomotor tone - autonomic nervous sytem
Baroreceptor reflex Chemoreceptor reflex |
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Baroreceptor Reflex
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Baroreceptors respond to changes in blood pressure
Baroreceptors monitor the degree of stretch in the walls of the vessels Whenblood pressure increases, baroreceptors cause (decreased sympathetic and increased parasympathetic) a decrease in cardiacrate and output, and vasodilation When blood pressure drops, baroreceptors cause an (increase sympathetic and decreased parasympathetic)increase in cardiac rate and output, and vasoconstriction |
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Blood Pressure Controle
Endocrine |
ADH
Angiotensin II Erythropoietin Natriuretic peptides |
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Blood pressure Control
ADH |
If blood pressure drops, ADH is released by the hypothalamus
ADH stimulates water reabsorption by the kidneys and vasoconstriction to cause an elevation of blood pressure |
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Blood Pressure Control
Natriuretic Peptides - Atrial Natriuretic Peptide |
Produced by cardiac muscle cells
These hormones reduce blood volume and blood pressure; promote water loss by the kidneys; block release of ADH, aldosterone, epinephrine, and norepinephrine; stimulate vasodilation - therefore, casue a dcrease in blood pressure Natriuretic peptides are produced in response to increased pressure in the right atrium during diastole |
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Blood Pressure Homeostasis
Neural |
Controlled by cardiac centers and vasomotor center of the medulla oblongata
Cerebral cortex; limbic system |
