5 Questions
What is the approximate diameter of capillaries?
5 μm
What type of blood do smaller veins and arteries, arterioles, and venules contain?
Deoxygenated blood
What is the function of pericytes in capillaries?
Resemble smooth muscle cells
Where does blood from capillary beds flow into?
Postcapillary venules
In most forms of inflammation, where does vascular leakage and leukocyte exudation occur preferentially?
Postcapillary venules
Study Notes
Capillary Characteristics
- The approximate diameter of capillaries is 5-10 micrometers.
- Capillaries contain a single layer of endothelial cells.
Blood Vessels and Blood Type
- Smaller veins and arteries, arterioles, and venules contain oxygenated blood.
Pericytes in Capillaries
- The function of pericytes in capillaries is to provide mechanical support and regulate blood flow.
Blood Flow
- Blood from capillary beds flows into venules.
Inflammation Pathophysiology
- In most forms of inflammation, vascular leakage and leukocyte exudation occur preferentially in postcapillary venules.
Test your knowledge of blood vessels with this quiz on general and systemic pathology. Explore topics such as vascular anomalies and the vascular wall response to injury. Review anatomy, histology, and physiology of arteries to enhance your understanding of this essential aspect of the human body.
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