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Twelve paired nerves that arise directly from the brain and brainstem.
Some Say Marry Money But My Brother Says Big Brains Matter Most (S = sensory, M = motor, B = both).
Circle of Willis
An anastomotic ring of arteries at the base of the brain that safeguards its blood supply.
The Cerebellum
The hindbrain structure that coordinates movement, posture and balance.
Dermatomes and Myotomes
The skin area (dermatome) and muscle group (myotome) supplied by a single spinal nerve root.
Peripheral Nerve Injuries
The motor and sensory loss patterns of the major upper-limb nerves.
The Cavernous Sinus
A paired dural venous sinus beside the body of the sphenoid, remarkable for the nerves and the artery that run through and beside it.
The Ventricular System of the Brain
A set of connected fluid-filled cavities inside the brain that make and hold cerebrospinal fluid, comprising two lateral ventricles, a third and a fourth ventricle.