Nucleus paraventricularis

Nucleus paraventricularis
Cognitores
TA: A14.1.08.909
Anatomia
Nucleus paraventricularis
Situs nuclei paraventricularis intra cerebrum muris.

Nucleus paraventricularis est nucleus hypothalamicus ex partibus et magnocellulari et parvocellulari compositus. Nucleus paraventricularis est apparator in parte "reactionis strictae" physiologicae detrimentosi stomachi vel postulationis causa.

Anatomia microscopicaRecensere

 
Nucleus paraventricularis cum partibus et laterali magnocellulari (PaML) et mediali parvocellulari (PaMP). 3V = Ventriculus tertius

Pars magnocellularisRecensere

Synapses partis nuclei magnocellularis hormonta vasopressinum et oxytocinum secernunt.

Pars parvocellularisRecensere

Currunt ab extensione rostrali loci caerulei fibrae nervales nordrenergicae ad partem parvocellularem nuclei paraventricularem liberationis hormonis corticotrophinum liberantis (CRH) )[1]

CircuitusRecensere

Fibrae nervales tractus paraventriculo-hypophysealis in neurohypophysem (partem posteriorem glandulae pituitariae) eunt, quo neurohormonta vasopressinum et oxytocinum liberata sunt. Videtur quoque, ut alii nexus in regiones extrahypophyseales exstent[2].

NotaeRecensere

  1. Itoi K., Sugimoto N. (may 2010). "The brainstem noradrenergic systems in stress, anxiety and depression". Journal of Neuroendocrinology 22 (5): 355-61 
  2. Hernández V. S., Vázquez-Juárez E., et al. (Oct 2015). "Extra-neurohypophyseal axonal projections from individual vasopressin-containing magnocellular neurons in rat hypothalamus". Frontiers in neuroanatomy 9: 130 

Nexus interni