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Microcirculation and Lymphatics: Capillary Function and Fluid Dynamics

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Microcirculation and Lymphatics: Capillary Function and Fluid Dynamics

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Questions and Answers

What is the primary function of microcirculation?

Regulation of blood pressure

Transport of nutrients to the tissues and the removal of cell excreta (correct)

Removal of excess lipids from the blood

Transport of oxygen to the tissues

What is the composition of the capillary walls?

Single-layer, highly impermeable epithelial cells

Multi-layer, highly impermeable endothelial cells

Multi-layer, highly permeable epithelial cells

Single-layer, highly permeable endothelial cells (correct)

What is the term for the intermittent contraction of metarterioles and precapillary sphincters?

Vasodilation

Vasoconstriction

Vasomotion (correct)

Vasopression

Why is the microcirculation of each organ organized differently?

To serve the specific needs of each organ Signup and view all the answers

What is the primary objective of the Starling equation?

To predict fluid movement across the capillary wall Signup and view all the answers

What is the main factor that regulates vasomotion in the tissues?

Concentration of oxygen Signup and view all the answers

Which type of capillary has a high degree of permeability due to the presence of fenestrae?

Fenestrated capillaries Signup and view all the answers

What percentage of the body's water is found intracellularly?

2/3 Signup and view all the answers

What is the main function of the lymphatic system?

To provide an accessory route for fluid to flow from the interstitial spaces into the blood Signup and view all the answers

What is the effect of an increase in adenosine on local vascular smooth muscle?

Relaxation Signup and view all the answers

What is the role of endothelin in the vascular system?

Constriction Signup and view all the answers

What is the term for the ability of a tissue to maintain blood flow relatively constant over a wide range of arterial pressures?

Auto-regulation Signup and view all the answers

What is the stimulus for the release of adenosine in the vascular system?

Insufficient blood flow Signup and view all the answers

What is the role of the endothelium in the vascular system?

Synthesizing vasoactive substances Signup and view all the answers

What is the effect of an increase in IP3 on vascular smooth muscle?

Increased Ca++ Signup and view all the answers

What is the mechanism of the myogenic theory of auto-regulation?

Dilation of arterioles in response to decreased wall tension Signup and view all the answers

Microcirculation and Lymphatics: Capillary Function and Fluid Dynamics

Choose a study mode

Podcast

Questions and Answers

What is the primary function of microcirculation?

What is the composition of the capillary walls?

What is the term for the intermittent contraction of metarterioles and precapillary sphincters?

Why is the microcirculation of each organ organized differently?

What is the primary objective of the Starling equation?

What is the main factor that regulates vasomotion in the tissues?

Which type of capillary has a high degree of permeability due to the presence of fenestrae?

What percentage of the body's water is found intracellularly?

What is the main function of the lymphatic system?

What is the effect of an increase in adenosine on local vascular smooth muscle?

What is the role of endothelin in the vascular system?

What is the term for the ability of a tissue to maintain blood flow relatively constant over a wide range of arterial pressures?

What is the stimulus for the release of adenosine in the vascular system?

What is the role of the endothelium in the vascular system?

What is the effect of an increase in IP3 on vascular smooth muscle?

What is the mechanism of the myogenic theory of auto-regulation?

What is the term for the growth of new blood vessels?

What is the factor that regulates brain blood flow?

What is the type of hyperemia that is a metabolic control mechanism?

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