The main function of the hypothalamohypophysial tract is to carry the oxytocin and antidiuretic hormone to the neurohypophysis.
Hypothalamohypophysial tract is found in the supra optic nuclei and the para ventricular nuclei of the hypothalamus. These are the neurosecretory nuclei that produce oxytocin and vasopressin.
The main function of the tract is to carry the oxytocin and antidiuretic hormone to the neurohypophysis where they are stored and where it is needed for the body to use.
Thus, transporting oxytocin and antidiuretic hormone to the neurohypophysis is one of the functions of the hypothalamohypophysial tract.
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