Persistence of contralateral innervation

David Franklin pak00453 at
Thu Jun 6 15:39:49 EST 1996

We have been puzzling over the following:

	Why is contralateral innervation so prominent and conserved a 
feature of the chordate nervous system? What is the functionality of this 
feature in the "higher" vertebrates? How does one explain the exceptions 
to this general rule, e.g. bilateral innervation of the upper half of the 
face in man (contrasted with largely unilateral innervation of the lower 

	Can anyone suggest any answers, or references where answers might 
be found?

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