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Hi Andrew,

Thanks for posting to the discussion forum! We’ll work through your comments one by one:
1. You are correct about the tectospinal tract. It serves to turn the head toward visual stimuli, in addition to sound. The handouts have been updated to reflect this.
2. You are 100% right about the autonomic nervous system. The sympathetic nervous system causes pupillary dilation and the parasympathetic nervous system causes pupillary constriction. We have corrected the handouts.
3. We double checked the blood supply for the posterior limb of the internal capsule and found some conflicting opinions – but, you are right, most sources cite the lenticulostriate branches of the MCA and the anterior choroidal artery (branch of the internal carotid artery) as the primary blood supply. The posterior cerebral artery supplies much of the diencephalon (including the thalamus), as well as portions of the temporal and occipital lobes.

We apologize for these errors and appreciate you pointing them out. We are constantly re-evaluating the material to make sure you have the best material possible. Thank you for your patience as we continue to develop the course!