Developmental changes in synapses of the retino-recipient layers of the opossum superior colliculus.
Changes in synaptic structure were examined in junctions of the retino-recipient layers of the opossum superior colliculus (SC) at critical developmental stages (30, 40 and 61 day-old pouch young and adult controls). Criteria of classification were the presence and direction of curvature (smile, flat, frown and irregular) and the degree of aggregation of paramembranous components (immature, intermediate and mature). The results favor the aggregation of dense components vis-a-vis curvature in the assessment of maturational changes.
Corrêa
E M
EM
Departamento de Neurobiologia, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Brasil.
Cavalcante
L A
LA
D000818:Animals; D009893:Opossums / Q000254:growth & development / Q000502:physiology*; D010772:Phosphotungstic Acid; D012160:Retina / Q000254:growth & development* / Q000648:ultrastructure; D013477:Superior Colliculi / Q000254:growth & development* / Q000648:ultrastructure; D013569:Synapses / Q000502:physiology* / Q000648:ultrastructure
D010772:Phosphotungstic Acid