The neurohypophysis comprises the pars nervosa, median eminence, and infundibular stalk. Conversely, the pars distalis is a component of the adenohypophysis (anterior pituitary) and is excluded from the neurohypophysis. Consequently, the pars distalis is the element not belonging to the neurohypophysis.
Neurohypophysis Components: Pars nervosa: Hypothalamic hormone storage and release.
Median eminence: Neurohypophysis-hypothalamus connection.
Infundibular stalk: Hormone transport pathway.
Summary: The pars distalis belongs to the anterior pituitary, not the neurohypophysis.