Stria terminalis
The stria terminalis is a strand of fibers in the brain. The stria terminalis is the most important efferent pathway of the amygdala and connects it with the hypothalamus , especially the preoptica region and other nuclei of the hypothalamus. It runs along the lateral ventricle between the caudate nucleus and thalamus . Part of the nerve fibers branches off into the stria medullaris thalami and thus reaches the habenula nuclei . Projections to the brain stem , especially to the circulatory , respiratory and vomiting centers , also run over the stria terminalis . At its origin from the amygdala - in the side wall of the anterior horn of the lateral ventricle - lies a core area , the nucleus striae terminalis (also bed nucleus of the stria terminalis or extended amygdala ).
The nucleus striae terminalis is important in tension and stress and in sexuality. This core is larger in men than in women. A study from 1995 reported that this nucleus was smaller in genetically male transsexuals than in heterosexual or homosexual men and sees it as an indication that hormone influences during fetal development could influence gender identity.
literature
- ^ H. Frick, H. Leonhardt, D. Starck: Special Anatomy , Volume 2, Edition 4, Georg Thieme Verlag 1992, ISBN 9783133569040 , p. 358.
- ↑ Walther Graumann, Dieter Sasse: CompactLehrbuch Anatomie , Volume 4, Schattauer Verlag 2005, ISBN 9783794520640 , pp. 306 and 335.
- ↑ JN Zhou, MA Hofman, LJ Gooren, DF Swaab: A sex difference in the human brain and its relation to transsexuality. In: Nature. Volume 378, Number 6552, November 1995, pp. 68-70, ISSN 0028-0836 . doi : 10.1038 / 378068a0 . PMID 7477289 .