title: On the evolution of the median eminence--the proximal neurosecretory contact region in some fishes (Elasmobranchii, Chondrosteoidei).
mesh_terms: D000717:Anatomy, Comparative; D000818:Animals; D001369:Axons; D005075:Biological Evolution; D001921:Brain / Q000166:cytology; D002196:Capillaries; D003238:Connective Tissue; D005399:Fishes / Q000033:anatomy & histology*; D007030:Hypothalamo-Hypophyseal System; D008854:Microscopy, Electron; D009490:Neurosecretory Systems / Q000166:cytology*; D010902:Pituitary Gland / Q000166:cytology; D012754:Sharks / Q000033:anatomy & histology*