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The central retinal artery is the first, and one of the smaller branches of the ophthalmic artery and runs in the dura mater inferior to the optic nerve. About 12.5mm (0.5 inch) posterior to the globe, the central retinal artery turns superiorly and penetrates the optic nerve , continuing along the center of the optic nerve, entering the eye to ...
"Observations suggest that a systemic hemodynamic challenge provoke[s] the release of vasospastic substance in the retinal vasculature of one eye." [ 16 ] Giant cell arteritis : Giant cell arteritis can result in granulomatous inflammation within the central retinal artery and posterior ciliary arteries of eye, resulting in partial or complete ...
The internal carotid artery supplies the brain. Plaque often builds up at that division and causes a narrowing (stenosis). Pieces of plaque can break off and block the small arteries above in the brain, which causes a stroke. Plaque can also build up at the origin of the carotid artery at the aorta. [citation needed]
A headache is a pain in the head, ... Cluster headaches, which are rare, cause severe, overwhelming pain around one eye multiple times a day. The condition is "very disabling," according to Collins.
The most common signs of CST are related to anatomical structures affected within the cavernous sinus, notably cranial nerves III-VI, as well as symptoms resulting from impaired venous drainage from the orbit and eye. [3] Classic presentations are abrupt onset of unilateral periorbital edema, headache, photophobia, and bulging of the eye ...
The parietal branch of the superficial temporal artery (posterior temporal) is a small artery in the head.It is larger than the frontal branch and curves upward and backward on the side of the head, lying superficial to the temporal fascia; it joins with its fellow of the opposite side, and with the posterior auricular and occipital arteries.
In anatomy, the left and right common carotid arteries (carotids) (English: / k ə ˈ r ɒ t ɪ d / [1] [2]) are arteries that supply the head and neck with oxygenated blood; they divide in the neck to form the external and internal carotid arteries.
Meniere’s disease: An inner-ear disorder linked to ear fullness, dizziness and ear ringing. Atherosclerosis : A condition that reduces blood flow to the arteries in the ears, neck and head. Is ...