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DictionarySeenucleusinterpeduncular nucleus
in·ter·pe·dun·cu·lar nu·cle·us [TA] a median, unpaired, ovoid cell group at the base of the midbrain tegmentum between the cerebral peduncles; it receives the retroflex fasciculus from the habenula and projects to the raphe region (raphe nuclei) and periaqueductal gray substance of the midbrain. Synonym(s): nucleus interpeduncularis [TA], ganglion isthmi, Gudden ganglion, intercrural ganglion, interpeduncular ganglionin·ter·pe·dun·cu·lar nu·cle·us (in'tĕr-pĕ-dungk'yū-lăr nū'klē-ŭs) [TA] A median, unpaired, ovoid cell group at the base of the midbrain tegmentum between the cerebral peduncles; it receives the retroflex fasciculus from the habenula and projects to the raphe region (raphe nuclei) and periaqueductal gray substance of the midbrain. interpeduncular nucleusA ventral nucleus of the midbrain tegmentum lying between the left and right substantia nigrae, which cap the two cerebral peduncles. The interpeduncular nucleus receives axons from the habenula (via the habenulo-interpeduncular tract), and it sends axons dorsally, to the midbrain raphe nuclei. See: limbic system for illusSee also: nucleusGudden, Bernhard A. von, German neurologist, 1824-1886. Gudden commissures - the commissural fibers that lie above and behind the optic chiasm. Synonym(s): commissurae supraopticaeGudden ganglion - a median, unpaired, ovoid cell group at the base of the midbrain tegmentum between the cerebral peduncles. Synonym(s): interpeduncular nucleusGudden tegmental nuclei - collective term for two small round cell groups in the caudal part of the midbrain associated with the mamillary body by way of the mamillary peduncle and mamillotegmental tract. Synonym(s): tegmental nuclei |