![cover image](https://wikiwandv2-19431.kxcdn.com/_next/image?url=https://upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Figures_Wikipedia-two_panels2.jpg/640px-Figures_Wikipedia-two_panels2.jpg&w=640&q=50)
Coalescent angiogenesis
Process of blood vessel formation / From Wikipedia, the free encyclopedia
Angiogenesis is the process of the formation of new blood vessels from pre-existing vascular structures, which is needed for oxygenation of - and providing nutrients to - expanding tissue. Angiogenesis takes place through different modes of action. Coalescent angiogenesis is a mode of angiogenesis where vessels coalesce or fuse to increase blood circulation. This process transforms an inefficient net structure into a more efficient treelike structure. It is the opposite of intussusceptive angiogenesis, which is where vessels split to form new vessels.
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Figures_Wikipedia-two_panels2.jpg/640px-Figures_Wikipedia-two_panels2.jpg)