furthermore , while neuropeptide y-immunoreactive neurons were also found in the medial and lateral septal nucleus , interstitial nucleus of the stria terminalis , retrochiasmatic area , central gray substance of the midbrain , colliculus caudalis , and nucleus of the solitary tract of the sheep , respective regions of the hedgehog brain appeared to be devoid of immunoreactive perikarya .
C0027882
neurons
C0599444
perikarya