Anatomy Diaries V: Præceptum

0.5mm HB Mechanical Pencil, 0.1mm Marker and Ballpoint Pen, A5 on Spotted Paper

Præceptum is Latin for order or command, which is one of the functions of the central nervous system. (Maybe that was too oversimplified.)

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The slide on the left shows the base of the skull superiorly, showing the twelve cranial nerves and their respective foramina they pass through. The slide on the right shows the brainstem and the origins of the cranial nerves, which are colour-coded by the information they carry.

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This slide shows the cross sections of the brainstem and the spinal cord of different levels, along with different tracts that travel through them.

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The slide on the left shows the extraocular muscles, their respective movements of the eyeball, and the optic pathway, along with visual defects that are created when lesions are produced. The slide on the right shows the structure of the middle and inner ear and Brodmann areas of the brain I had to learn in my first year.

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These slides show different cross sections of the brain, labelled with its constituent parts.

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The slide on the left shows the arteries that compose the circle of Willis, and the distribution of blood in the brain supplied by the anterior, middle and posterior cerebral arteries. The slide on the right shows the the triangles formed by neck muscles and their respective contents.

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