AP BIOLOGY

Detailed explanation-1: -Angiogenesis is the formation of new blood vessels from pre-existing microvasculature. This biological process is critical to both physiological and pathological processes such as wound healing and tumor growth. Angiogenesis is regulated by an opposing balance of angiogenic and angiostatic factors.

Detailed explanation-2: -Angiogenesis is the formation of new blood vessels. This process involves the migration, growth, and differentiation of endothelial cells, which line the inside wall of blood vessels. The process of angiogenesis is controlled by chemical signals in the body.

Detailed explanation-3: -Tumor angiogenesis is defined as the proliferation of a network of blood vessels which supplies a tumor with a supportive microenvironment rich with oxygen and nutrients to sustain optimal growth.

Detailed explanation-4: -For the metastatic spread of cancer tissue, growth of the vascular network is important. The processes whereby new blood and lymphatic vessels form are called angiogenesis and lymphangiogenesis, respectively.

Detailed explanation-5: -In post-embryonic development the main form of vasculature expansion is angiogenesis, also referred to as neovascularization.