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  2. Cerebral circulation - Wikipedia

    en.wikipedia.org/wiki/Cerebral_circulation

    The neurovascular unit regulates cerebral blood flow so that activated neurons can be supplied with energy in the right amount and at the right time. [1] Because the brain would quickly suffer damage from any stoppage in blood supply, the cerebral circulatory system has safeguards including autoregulation of the blood vessels.

  3. Neurovascular unit - Wikipedia

    en.wikipedia.org/wiki/Neurovascular_unit

    The cells of the neurovascular unit also make up the bloodbrain barrier (BBB), which plays an important role in maintaining the microenvironment of the brain. [11] In addition to regulating the exit and entrance of blood, the bloodbrain barrier also filters toxins that may cause inflammation, injury, and disease. [12]

  4. Cerebral arteries - Wikipedia

    en.wikipedia.org/wiki/Cerebral_arteries

    Angiogram of the arterial supply. The cerebral arteries describe three main pairs of arteries and their branches, which perfuse the cerebrum of the brain. The three main arteries are the: Anterior cerebral artery (ACA), which supplies blood to the medial portion of the brain, including the superior parts of the frontal and anterior parietal ...

  5. Occipital artery - Wikipedia

    en.wikipedia.org/wiki/Occipital_artery

    Muscular branches: supply the digastric, stylohyoid, splenius, and longus capitis muscles. Sternocleidomastoid branch : This branch divides into upper and lower branches in the carotid triangle . The upper branch accompanies the accessory nerve to the sternocleidomastoid , and the lower branch arises near the origin of the occipital artery ...

  6. Posterior communicating artery - Wikipedia

    en.wikipedia.org/wiki/Posterior_communicating_artery

    The brain is supplied with blood by the internal carotid arteries and also by the posterior cerebral arteries; the posterior communicating arteries connects the two systems. This provides redundancies or collaterals in the cerebral circulation so that, if one system is blocked or narrowed, the other can take over.

  7. Anterior inferior cerebellar artery - Wikipedia

    en.wikipedia.org/wiki/Anterior_inferior...

    Occlusion of AICA is considered rare, but generally results in a lateral pontine syndrome, also known as AICA syndrome.The symptoms include sudden onset of vertigo, vomiting, nystagmus, dysarthria, falling to the side of the lesion (due to damage to vestibular nuclei), and a variety of same-side features including hemiataxia, loss of all types of sensation of the face (due to damage to the ...

  8. Posterior cerebral artery - Wikipedia

    en.wikipedia.org/wiki/Posterior_cerebral_artery

    The posterior cerebral artery (PCA) is one of a pair of cerebral arteries that supply oxygenated blood to the occipital lobe, as well as the medial and inferior aspects of the temporal lobe of the human brain. The two arteries originate from the distal end of the basilar artery, where it bifurcates into the left and right posterior cerebral ...

  9. Anterior communicating artery - Wikipedia

    en.wikipedia.org/wiki/Anterior_communicating_artery

    This can often preserve the cerebral blood supply well enough to avoid the symptoms of ischemia. [7] The arteries of the base of the brain. Anterior communicating artery at top. The temporal pole of the cerebrum and a portion of the cerebellar hemisphere have been removed on the right side. Inferior aspect (viewed from below).