The ability of an organism to maintain its internal stability against external environmental changes thereby developing the constant internal environment within the organism is known as Homeostasis.
Homeostasis is deeply produced in warm-blooded animals to control body temperature, fluid balance, blood pH, and oxygen pressure, concentration of chemicals,etc.
During homeostasis process entire body system work together to maintain the balance. If not controlled or if disrupted the process will result in disease or disorder.
AVMs are known as a genetic condition in which blood vessels are formed incorrectly in the brain or spine. As these vessels are malformed they could break, which can lead to bleeding into the brain.