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The effects of hypothalamic transections of varying lengths on reflex ovulation in the rabbit are reported. Circular cuts which surgically isolated the medial basal hypothalamus (MBH) from the remainder of the brain did not prevent copulation 4 to 24 h later, but did block reflex ovulation. On the contrary, hemicircular cuts of either the rostral, caudal or one lateral haf of the circular cut did not prevent reflex ovulation. These results suggest that coital stimuli reach the MBH through a diffuse network of fibers and that only very extensive deaferrentation of the MBH can cause blockade of ovulation in rabbits. These data are compared with results of other investigators in which anterior deafferentation of the MBH blocked reflex and spontaneous ovulation in rats.
L M Voloschin, and
E A Gallardo
May 1975,
Endocrinology,
L M Voloschin, and
E A Gallardo
May 1975,
Endocrinology,
L M Voloschin, and
E A Gallardo
May 1975,
Endocrinology,
L M Voloschin, and
E A Gallardo
May 1975,
Endocrinology,
L M Voloschin, and
E A Gallardo
January 1976,
Neuroendocrinology,
L M Voloschin, and
E A Gallardo
February 1971,
Acta endocrinologica,
L M Voloschin, and
E A Gallardo
January 1982,
Advances in anatomy, embryology, and cell biology,
L M Voloschin, and
E A Gallardo
May 1990,
Brain research,
L M Voloschin, and
E A Gallardo
February 1978,
Life sciences,
L M Voloschin, and
E A Gallardo
January 1995,
Zhurnal vysshei nervnoi deiatelnosti imeni I P Pavlova,
