AP BIOLOGY

Detailed explanation-1: -Tumor angiogenesis is the growth of new blood vessels that tumors need to grow. This process is caused by the release of chemicals by the tumor and by host cells near the tumor.

Detailed explanation-2: -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-3: -What is angiogenesis? 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-4: -Angiogenesis is how the body forms new blood vessels. This is a normal part of growth and healing. But sometimes angiogenesis can play a role in diseases such as cancer. To grow, a tumor needs nutrients and oxygen from your blood. The tumor sends signals that stimulate more blood vessels to grow and carry more blood.

Detailed explanation-5: -Like healthy cells, cancer cells can’t live without oxygen and nutrients. So they send out signals called angiogenic factors. These encourage new blood vessels to grow into the tumour. This is called angiogenesis.