Arteriole Retina Temporal Inferior

The inferior temporal retinal arteriole (lat. a. temporalis retinae inferior, pna, bna, jna) is one of the terminal arterioles of the retina.

The inferior temporal retinal arteriole arises from the inferior branch of the central retinal artery and supplies the lower part of the temporal half of the retina. It is one of the four main terminal arterioles of the retina, along with the superior temporal, superior nasal and inferior nasal arterioles.

The inferior temporal arteriole runs horizontally along the lower part of the retina from the optic disc to the periphery. Its branches anastomose with neighboring arterioles, forming a dense network of capillaries that provide blood supply to the retina.

Changes in the structure and functioning of this arteriole, such as narrowing of the lumen, can lead to disturbances in blood flow and ischemia of the retinal tissue in the area of ​​​​its blood supply.

Retinal arteriology is a branch of ophthalmology that studies the arterial network of the eyeball, the basis of which is the arteriole.

The system of arterioles throughout the network is united into an arterial circle, which is formed by permanent connections of arterioles. In the case when they connect with three or more other arterioles, as well as when the branches of many arterioles merge at one point, anastomoses are formed. Occasionally there are places where the vessel branches in the form of a “star”. Straight, narrow arterioles are the least common type of arteriole in the human retina. They usually have a convoluted structure.