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  2. Posterior cerebral artery syndrome - Wikipedia

    en.wikipedia.org/wiki/Posterior_cerebral_artery...

    Posterior cerebral artery syndrome is a condition whereby the blood supply from the posterior cerebral artery (PCA) is restricted, leading to a reduction of the function of the portions of the brain supplied by that vessel: the occipital lobe, the inferomedial temporal lobe, a large portion of the thalamus, and the upper brainstem and midbrain.

  3. Posterior cerebral artery - Wikipedia

    en.wikipedia.org/wiki/Posterior_cerebral_artery

    The following are central branches of the PCA, also known as perforating branches: Thalamoperforating and thalamogeniculate or postero-medial ganglionic branches: a group of small arteries which arise at the commencement of the posterior cerebral artery: these, with similar branches from the posterior communicating, pierce the posterior perforated substance, and supply the medial surfaces of ...

  4. Posterior communicating artery - Wikipedia

    en.wikipedia.org/wiki/Posterior_communicating_artery

    The PCA begins as a continuation of the posterior communicating artery in 70-90% of fetuses with the remainder of PCAs having a basilar origin. The fetal carotid origin of the PCA usually regresses as the vertebral and basilar arteries become dominant and it finds a new origin in the basilar artery.

  5. Dense artery sign - Wikipedia

    en.wikipedia.org/wiki/Dense_artery_sign

    In medicine, the dense artery sign or hyperdense artery sign is an increased radiodensity of an artery as seen on computer tomography (CT) scans, and is a radiologic sign of early ischemic stroke. [1] In earlier studies of medical imaging in patients with strokes, it was the earliest sign of ischemic stroke in a significant minority of cases. [2]

  6. Positive Coaching Alliance - Wikipedia

    en.wikipedia.org/wiki/Positive_Coaching_Alliance

    Positive Coaching Alliance (PCA) is an American non-profit organization which strives to create a positive youth sports environment. [ 1 ] Founded in 1998, [ 2 ] PCA has established 18 chapters nationwide and has delivered more than 20,000 live group workshops to over 19.2 million youths. [ 3 ]

  7. Posterior cortical atrophy - Wikipedia

    en.wikipedia.org/wiki/Posterior_cortical_atrophy

    Posterior cortical atrophy (PCA), also called Benson's syndrome, is a rare form of dementia which is considered a visual variant or an atypical variant of Alzheimer's disease (AD). [ 1 ] [ 2 ] [ 3 ] The disease causes atrophy of the posterior part of the cerebral cortex , resulting in the progressive disruption of complex visual processing . [ 4 ]

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  9. Partnership for Central America - Wikipedia

    en.wikipedia.org/wiki/Partnership_for_Central...

    The Partnership for Central America (PCA) is a public–private partnership focused on economic development in the Northern Triangle of Central America countries (Honduras, Guatemala, and El Salvador) addresses the economic roots of migration with job creation and social programs. [2]

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