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blood vessel, artery, vein, large vessel



How to pronounce capillary (audio)

Dictionary definition of capillary

A tiny blood vessel that connects the arterioles (small arteries) and venules (small veins) in the body's circulatory system.
"Capillary function is essential for oxygen delivery to tissues."

Detailed meaning of capillary

Capillaries are only one cell thick, which allows for the exchange of nutrients, gases, and waste products between the blood and the body's tissues. This exchange process is known as capillary exchange or microcirculation. Capillaries are found throughout the body, but are most densely located in organs such as the lungs, liver, and kidneys. They play a critical role in maintaining proper blood flow and oxygenation to these organs, as well as in regulating blood pressure and body temperature. Certain medical conditions can affect the function of capillaries, such as diabetes, which can cause damage to the capillaries in the eyes and kidneys. In short, capillaries are important structures that enable the exchange of materials between the blood and the body's tissues, and are essential for maintaining proper organ function.

Example sentences of capillary

1. The capillary is the smallest blood vessel in the human body.
2. When you prick your finger, a tiny capillary can release a drop of blood.
3. Capillary health is crucial for proper circulation.
4. Capillary damage can lead to bleeding disorders.
5. Capillary walls are extremely thin to facilitate nutrient exchange.
6. The capillary can be affected by diseases like diabetes.

History and etymology of capillary

The noun 'capillary' finds its etymological roots in Latin. It is derived from the Latin word 'capillaris,' which means 'pertaining to hair' or 'hairlike.' This term was chosen because capillaries, the tiny blood vessels that form an intricate network throughout the body, are so narrow and thin that they resemble fine hairs. Capillaries play a crucial role in the circulatory system, facilitating the exchange of oxygen, nutrients, and waste products between blood and body tissues. The etymology of 'capillary' underscores the visual similarity between these slender vessels and hair, highlighting their delicate and intricate

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Further usage examples of capillary

1. Capillary fragility may result in easy bruising.
2. Understanding capillary structure is fundamental in medical studies.
3. A damaged capillary can cause localized swelling.
4. Capillary damage can impair the healing process.
5. Capillary integrity is critical for overall vascular health.
6. Microscopic examination can reveal capillary abnormalities.
7. Capillary constriction can help regulate blood flow.
8. A ruptured capillary can lead to localized pain.
9. Capillary dilation occurs during exercise to increase blood supply.
10. Inflammation can affect capillary permeability.
11. Capillary function is central to tissue repair mechanisms.
12. Capillary damage can disrupt nutrient transport.
13. Capillary health is essential for overall cardiovascular well-being.
14. The capillary is a tiny blood vessel responsible for nutrient exchange.
15. Capillary damage can lead to bleeding under the skin.
16. Capillary walls are thin and fragile.
17. The capillary network is extensive, covering every tissue.
18. The doctor examined the patient's capillary refill time.
19. Capillary action is essential for water absorption in plants.
20. Understanding capillary dynamics is crucial in medical research.
21. Blood flows through the capillary to provide oxygen to cells.
22. Capillary walls are permeable to gases and nutrients.
23. Capillary density varies in different organs.
24. The capillary bed in the lungs is essential for oxygenation.



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