பயனர்:Kaliru/மணல்தொட்டி
தந்துகிதொகு
| தந்துகி | |
|---|---|
 மின்னணு நுண்ணோக்கி மூலம் இரத்த சிவப்பு அணுக்கள் நிரம்பியுள்ள தந்துகி. | |
 A simplified illustration of a capillary network (lacking precapillary sphincters, which are not present in all capillaries[1]). | |
| விளக்கங்கள் | |
| இலத்தீன் | vas capillare[2] |
| அமைப்பு | Circulatory system |
| உடற்கூற்றியல் | |
A capillary is a small blood vessel from 5 to 10 micrometres (μm) in diameter, and having a wall one endothelial cell thick. They are the smallest blood vessels in the body: they convey blood between the arterioles and venules. These microvessels are the site of exchange of many substances with the interstitial fluid surrounding them. Substances which exit include water (proximal portion), oxygen, and glucose; substances which enter include water (distal portion), carbon dioxide, uric acid, lactic acid, urea and creatinine.[3] Lymph capillaries connect with larger lymph vessels to drain lymphatic fluid collected in the microcirculation.
During early embryonic development[4] new capillaries are formed through vasculogenesis, the process of blood vessel formation that occurs through a de novo production of endothelial cells which then form vascular tubes.[5] The term angiogenesis denotes the formation of new capillaries from pre-existing blood vessels and already present endothelium which divides.[6]
- ↑ பிழை காட்டு: செல்லாத
<ref>குறிச்சொல்;Sakai 13என்னும் பெயரில் உள்ள ref குறிச்சொல்லுக்கு உரையேதும் வழங்கப்படவில்லை - ↑ "THH:3.09 The cardiovascular system". பார்த்த நாள் June 3, 2014.
- ↑ Maton, Anthea; Jean Hopkins; Charles William McLaughlin; Susan Johnson; Maryanna Quon Warner; David LaHart; Jill D. Wright (1993). Human Biology and Health. Englewood Cliffs, New Jersey: Prentice Hall. பன்னாட்டுத் தரப்புத்தக எண்:978-0-13-981176-0. https://archive.org/details/humanbiologyheal00scho.[page needed]
- ↑ "Embryological variation during nematode development".
- ↑ John S. Penn (11 March 2008). Retinal and Choroidal Angiogenesis. Springer. பக். 119–. பன்னாட்டுத் தரப்புத்தக எண்:978-1-4020-6779-2. https://books.google.com/books?id=Y-26TIIROYwC&pg=PA119. பார்த்த நாள்: 26 June 2010.
- ↑ "Endoderm – Developmental Biology – NCBI Bookshelf". பார்த்த நாள் 2010-04-07.