Identification and distribution of tuberoinfundibular neurones

Gabor B. Makara, Martyn C. Harris, K. Michael Spyer

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Abstract

Electrophysiological techniques have been used to identify tuberoinfundibular neurones in the rat. Electrical stimuli were delivered through surface electrodes to the junction of the median eminence and the pituitary stalk and extracellular unit potentials were recorded in the medial hypothalamus. Antidromically evoked unit potentials were found within 1 mm of the midline and 2 mm from the ventral surface of the hypothalamus, in an area 0-4 mm anterior to the anterior border of pituitary. The latencies were in a range of 2-21 msec and the calculated conduction velocities below 0.5 m/sec. The majority of the cells were located in the arcuate and ventromedial nuclei, but cells were also found in the suprachiasmatic, anterior periventricular and dorsal premammillary nuclei.

Original languageEnglish
Pages (from-to)283-290
Number of pages8
JournalBrain research
Volume40
Issue number2
DOIs
Publication statusPublished - May 26 1972

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ASJC Scopus subject areas

  • Neuroscience(all)
  • Molecular Biology
  • Clinical Neurology
  • Developmental Biology

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