interstitial nucleus of Cajal

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in·ter·sti·tial nu·cle·us

a group of widely spaced, medium-size neurons in the dorsomedial region of the upper mesencephalic tegmentum, immediately lateral to the nucleus of Darkschewitsch; together with the latter, the interstitial nucleus is closely associated with the medial longitudinal fasciculus, through which it receives fibers from the vestibular nuclei and projects crossed fibers through the posterior commissure to the oculomotor nucleus; also projects fibers to all spinal levels. It is believed to be involved in the integration of head and eye movements, particularly eye movements of a vertical or oblique nature.

interstitial nucleus of Cajal

A midbrain nucleus found both interspersed among and lateral to the medial longitudinal fasciculus (MLF), just rostral to the oculomotor nucleus. The interstitial nucleus of Cajal is one of the accessory oculomotor (preoculomotor) nuclei, which are composed of interneurons concerned with eye movements and reflex gaze coordination and which receive axons from the MLF.
See also: nucleus


Santiago, Spanish histologist and Nobel laureate, 1852-1934.
Cajal astrocyte stain - a method for demonstrating astrocytes by impregnation in a solution containing gold chloride and mercuric chloride.
Cajal cell - Synonym(s): horizontal cell of Cajal
Cajal formol ammonium bromide solution
Cajal gold-sublimate method
Cajal uranium silver method
horizontal cell of Cajal - a small fusiform cell found in the superficial layer of the cerebral cortex with its long axis placed horizontally. Synonym(s): astrocyte; Cajal cell
interstitial nucleus of Cajal - a group of neurons believed to be involved in the integration of head and eye movements. Synonym(s): interstitial nucleus
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