Hemihypesthesia is a reduction in sensitivity on one side of the body.
/ref> A person with this condition may not be able to perceive being lightly touched on one side, but has normal function on the other side of the body.
It can occur from damage to the thalamocortical fibers in the posterior limb of the internal capsule. It is one of the deficits produced by anterior choroidal artery syndrome
Standard anatomical terms of location are used to unambiguously describe the anatomy of animals, including humans. The terms, typically derived from Latin or Greek roots, describe something in its standard anatomical position. This position pro ...
. The anterior choroidal artery
The anterior choroidal artery originates from the internal carotid artery. However, it may (rarely) arise from the middle cerebral artery.
Structure
The anterior choroidal artery originates from the distal carotid artery 5 mm after the origin of ...
is in the brain, off of the internal carotid in the "circle of Willis
The circle of Willis (also called Willis' circle, loop of Willis, cerebral arterial circle, and Willis polygon) is a circulatory anastomosis that supplies blood to the brain and surrounding structures in reptiles, birds and mammals, including huma ...
".
References
Symptoms and signs: Nervous system
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