Hello,
In reference to the same presentation on neuroanatomy and neuroscience.
The autonomic nervous system section states that the sympathetic nervous system causes “pupillary constriction”. The sympathetic nervous system causes pupillary dilation, not constriction. Horner’s sign, which is seen with PICA strokes causes an ipsilateral constriction of the pupil due to loss of sympathetic input (therefore impairing the normal pupillary dilation).
Andrew Wagner, PT, DPT