👉 Ospheres is a term used in medicine to describe the structure of blood vessels. It refers to the thin, muscular walls that surround the capillaries and arterioles of the circulatory system, allowing for the exchange of gases, nutrients, and waste products between the blood and its surrounding tissues. These ospheres are responsible for maintaining the pressure gradient necessary for the circulation of blood throughout the body, which helps to distribute oxygenated blood throughout the body's tissues.