18 Questions
Which type of control of organ blood flow is exerted by factors within the organ itself?
Intrinsic control
Which theory of metabolic control suggests that the release of vasodilator substances in response to increased tissue metabolism leads to increased blood flow?
Vasodilator theory
Which substances play a role in the metabolic control of blood flow to specific tissues?
pH and adenosine
Which of the following is NOT a mechanism of blood flow control?
Humoral Control
Which of the following is NOT a special example of metabolic control of blood flow?
Tubuloglomerular Feedback
Which of the following is NOT a factor that influences vascular smooth muscle signal transduction?
Anions (Acetate & Citrate)
Which of the following is NOT a mechanism of chronic control of blood flow?
Changes in arterioles, metarterioles, and precapillary sphincters
Which of the following substances is NOT a vasoconstrictor?
Nitric oxide
Which of the following is a special mechanism for acute blood flow control in the brain?
CO2 and H+
Which of the following is NOT a characteristic of extrinsic control of organ blood flow?
It is responsible for long-term regulation of blood flow.
Which of the following is a characteristic of myogenic regulation of blood flow?
It is independent of changes in blood pressure.
Which of the following substances is NOT involved in the metabolic control of blood flow to specific tissues?
Adenosine
Which of the following is NOT a characteristic of autoregulation of blood flow?
It is mediated by vasoconstrictor substances
Which of the following substances is NOT involved in the metabolic control of blood flow to specific tissues?
Endothelin
Which of the following is a characteristic of myogenic regulation of blood flow?
It helps to maintain constant blood flow to an organ
Which of the following is a mechanism of acute control of blood flow?
Vasodilator theory
Which of the following substances is NOT involved in the metabolic control of blood flow to specific tissues?
Carbon dioxide
Which of the following is a special mechanism for acute blood flow control in the kidneys?
Tubuloglomerular feedback
Test your knowledge on the local control of the resistance vasculature and microcirculation with this quiz. Learn about the difference between extrinsic and intrinsic control of organ blood flow, as well as acute and long-term control mechanisms.
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