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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. 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 ...

  4. 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).

  5. Anterior cerebral artery - Wikipedia

    en.wikipedia.org/wiki/Anterior_cerebral_artery

    The anterior cerebral artery supplies a part of the frontal lobe, specifically its medial surface and the upper border. It also supplies the front four–fifths of the corpus callosum, and provides blood to deep structures such as the anterior limb of the internal capsule, part of the caudate nucleus, and the anterior part of the globus ...

  6. 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, part of the back 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 arteries.

  7. Haemodynamic response - Wikipedia

    en.wikipedia.org/wiki/Haemodynamic_response

    A decrease in circulation in the brain vasculature due to stroke or injury can lead to a condition known as ischemia. In general, decrease in blood flow to the brain can be a result of thrombosis causing a partial or full blockage of blood vessels, hypotension in systemic circulation (and consequently the brain), or cardiac arrest. This ...

  8. What Is Low Testosterone & What Causes It? - AOL

    www.aol.com/low-testosterone-causes-125700734.html

    Some research suggests that testosterone helps regulate the production of nitric oxide, an essential molecule for developing and maintaining an arousal. Consequently, when your testosterone levels ...

  9. Brainstem - Wikipedia

    en.wikipedia.org/wiki/Brainstem

    The main supply of blood to the brainstem is provided by the basilar arteries and the vertebral arteries. [14]: 740 It is important to note that there is a bit of variability in how these arteries connect and supply blood to the brain, such as where the arteries fuse or are reinforced. The variability that exists allows for syndromes to be ...