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Medical Term:

secondary X zone


an adrenocortical zone, situated in the inner zona fasciculata, that appears on postpubertal gonadectomy in some male rodents, most notably the mouse; the development of this zone is believed to be stimulated by pituitary gonadotropins.

© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.