Skip to main content

Neuroanatomy and Psychiatry key concepts

4 revision pages for Neuroanatomy and Psychiatry, each with the key facts, a memory aid where one helps, and the exam traps.

  1. Anterior cerebral artery stroke: leg-predominant weakness and frontal features

    Anterior cerebral artery stroke affects the medial frontal lobe and the front of the parietal lobe: weakness mainly of the opposite leg, with apathy (loss of drive) or poor planning.

  2. Astrocyte functions: glutamate uptake, potassium buffering and the blood-brain barrier

    Astrocytes are star-shaped glial cells (the supporting cells of the nervous system) that look after the chemical environment around neurones.

  3. Bitemporal hemianopia: optic chiasm compression

    Loss of the outer half of each eye's visual field (the view it takes in), called bitemporal hemianopia, points to the optic chiasm, where the optic nerves meet.

  4. Lateral corticospinal tract crossing and the side of weakness

    The lateral corticospinal tract carries commands for fine, skilled movement of distal limb muscles (those furthest from the trunk) and crosses the midline in the caudal (lower) medulla.

Practice Neuroanatomy and Psychiatry questions