Arteriole Retina Nasal Superior

Retinal Arteriole Nasal Superior: Functions and Features

The superior nasal retinal arteriole (English: a. nasalis retinae superior, PNA, BNA, JNA) is an important element of the eye, responsible for the supply of blood and oxygen to the retina. It is one of the small vessels that provide blood supply to the eye and is located in the upper part of the nasal half of the retina.

The functions of the superior retinal arteriole include supplying oxygen and nutrients to the retina, allowing the eye to function properly. It is also responsible for the efficient removal of waste material from the retina. Thanks to the superior nasal retinal arteriole, the eye is able to correctly perceive light and transmit information to the brain.

In addition, it should be noted that the superior nasal retinal arteriole is one of the key parts of the vascular system of the eye. It ensures adequate blood supply to the eye, which helps prevent various eye diseases such as glaucoma and cataracts.

It is important to note that the superior nasal retinal arteriole can be susceptible to various diseases that can negatively affect its functioning. For example, problems with blood supply can lead to decreased visual function and even loss of vision. Therefore, it is very important to pay due attention to eye health, undergo regular medical examinations and monitor proper nutrition.

In conclusion, the superior nasal retinal arteriole is an important part of the eye responsible for its proper functioning. It ensures sufficient blood supply and oxygen supply to the retina, which allows the eye to correctly perceive light and transmit information to the brain. Therefore, you need to pay due attention to eye health and undergo regular medical examinations to prevent possible eye diseases that could negatively affect the functioning of the superior nasal retinal arteriole.

Arteriole of the retina of the upper nasal artery (a. n asal i s reti nae s up erior e, PN A) is a branching, tapering artery that feeds the maxillary artery. Typically, part of the fibers of the ophthalmic branch of the mandibular division of the cranial nerve turns away under the eye and becomes a branch of the inferior tourniquet artery.

Branches arising from the nasal superior retinal artery

* Branch of the pterygoid process - Branches from the main artery downward from the sigmoid sinus. After diverting to the temple, it descends down the outer side of the eyelid cone. Crossing the frontal, ophthalmic, and nasal canals and the anterior pontine canal to join the lateral ophthalmic artery. *Maxillary branch - Ascend to the apex of the body of the external nose. Only one of the branches of the common maxillary artery, it is given off by the cranial filament. It clogs the superior sinus, located to the right of the inferior turbinate. The canal is perforated in the superficial layer of the masticatory muscles. Descends along with the facial nerve and connects with the deep branch of the facial vein. * Large temporal branch - runs from the ear to the superficial layer of the masticatory muscle. On its way it crosses the superior orbital fissure. It joins the superior temporal artery. Lymphatic route: submucosal and subcutaneous upper temporal region of the face, outer jaw region, occipital and parietal regions. It drains into the anterior and posterior lymph nodes of the head. * The middle branch of the superior orbital fissure - after being directed to the open canal of the mucous membrane of the nasopharynx, branches to the lower orbital surface of the transverse foramina. The bend near the semi-column reaches the orbit. Forms a compartment with other vessels and the membrane around the eye.