What is the rear brain artery?

The

circulation system is responsible for transporting oxygen and nutrients to the brain. The part of the complex brain blood supply includes the left and right rear brain arteries. These two arteries supply oxygenated blood to the lower part of the brain, in the occipital part of the skull.

The blood is supplied to the head and brain by four large arteries, two carotid arteries and two vertebral arteries. The right and left vertebral artery is connected to create a basillary artery. This artery is divided into two rear brain arteries near the brain stem, on the upper edge of the pony. The inner carotides are connected to the rear brain artery through the rear artery. This communication is part of the arterial structure known as the Willis Circle. The Willis Circle allows circulation between the different parts of the brain to be leveled. This area contains Calcarine bark, also known as the primary visual bark. Short branches of the rear brain arteries supply blood to hippocamp, thalamus, part of the optical roads and midbrain.

strokes affecting the rear brain artery can affect the occipital cure and cause alexia, which is the inability to read. Alternatively, these moves can affect visual learning, visual recognition or visual spatial orientation. Strokes involving the rear brain artery can also affect the brain or stem of the brain, causing slow or minor speech. This is called dysarthria and is the result of nerve damage affecting muscles that control the tongue and jaw. Ost muds tend to be unilateral and affect only half of the brain.

Anton syndrome, however, results from a stroke involving vertebral artery that affects both hemispheres. Patient Anton syndrome experiences cortical blindness, which is sincerely unconscious and can deny strongly. Patients cannot identify simple objects and may be unable to determine whether the lights of the room are on or off. However, pupils of the eye still respond to light.

Patient's brain Anton Syndromeu will "lie" about what the patient sees. The patient does not know about this deception and accuses visual errors of other problems, such as glasses. This unusual reaction could be because the damaged visual bark is separated from other parts of the brain, including speech and language sections. This reaction continues and over time the patient realizes his cortical blindness.