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Questions and Answers
Which mechanism is responsible for the fast regulation of arterial pressure?
Which mechanism is responsible for the fast regulation of arterial pressure?
- Baroreceptor mechanism (correct)
- Microcirculation mechanism
- Renin-angiotensin-aldosterone mechanism
- Lymph mechanism
What is the primary function of the renin-angiotensin-aldosterone mechanism?
What is the primary function of the renin-angiotensin-aldosterone mechanism?
- Regulating arterial pressure (correct)
- Controlling blood flow in coronary circulation
- Maintaining fluid exchange across capillaries
- Controlling capillary beds
What is the formula for mean arterial pressure (MAP)?
What is the formula for mean arterial pressure (MAP)?
- MAP = SV x TPR
- MAP = BP x HR
- MAP = HR x SV
- MAP = CO x TPR (correct)
Which factor triggers the baroreceptor reflex?
Which factor triggers the baroreceptor reflex?
What is the primary function of nitric oxide in the control of blood flow?
What is the primary function of nitric oxide in the control of blood flow?
Which mechanism is responsible for the slower, hormonally regulated regulation of arterial pressure?
Which mechanism is responsible for the slower, hormonally regulated regulation of arterial pressure?
What is the primary function of the renin-angiotensin-aldosterone mechanism?
What is the primary function of the renin-angiotensin-aldosterone mechanism?
Which factor triggers the release of renin in the renin-angiotensin-aldosterone mechanism?
Which factor triggers the release of renin in the renin-angiotensin-aldosterone mechanism?
What is the primary function of nitric oxide in the control of blood flow?
What is the primary function of nitric oxide in the control of blood flow?
Which mechanism is responsible for the fast regulation of arterial pressure?
Which mechanism is responsible for the fast regulation of arterial pressure?
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Study Notes
Regulation of Arterial Pressure
- The baroreceptor reflex is responsible for the fast regulation of arterial pressure.
- The primary function of the renin-angiotensin-aldosterone mechanism is to regulate blood pressure through the control of fluid volume and vascular resistance.
- The formula for mean arterial pressure (MAP) is: MAP = (SBP + 2DBP) / 3, where SBP is systolic blood pressure and DBP is diastolic blood pressure.
- A decrease in arterial pressure triggers the baroreceptor reflex.
- The primary function of nitric oxide in the control of blood flow is to cause vasodilation, which increases blood flow to tissues.
- The renin-angiotensin-aldosterone mechanism is responsible for the slower, hormonally regulated regulation of arterial pressure.
- A decrease in renal perfusion pressure or a decrease in sodium delivery to the distal tubule triggers the release of renin in the renin-angiotensin-aldosterone mechanism.
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