The minor arterial circle of the iris is an essential part of the eye's anatomy, providing blood supply to the iris and other structures. This important circle can also be referred to as the Minor Circulus Arteriosus or the Little Circle of Willis. It works in conjunction with the major arterial circle of the iris, ensuring the proper circulation of blood and oxygen to the eye. Additionally, the minor arterial circle of the iris can be referred to as the ciliary arterial ring, due to its location on the ciliary body of the eye. Whatever name it goes by, this delicate and vital structure plays a crucial role in maintaining healthy eyesight.