membrana vitellina


mem·bra·na vit·el·li·na

1. the membrane enveloping the yolk; specifically, the thickened cell membrane of large-yolked oocytes; Synonym(s): ovular membrane, vitelline membrane2. sometimes used to designate the zona pellucida of a mammalian oocyte. Synonym(s): yolk membrane

mem·bra·na vit·el·li·na

(mem-brā'nă vi-tĕ-lī'-nă) 1. The membrane enveloping the yolk; specifically, the thickened cell membrane of large-yolked oocyte.
Synonym(s): ovular membrane.
2. Sometimes used to designate the zona pellucida of a mammalian oocyte.
Synonym(s): yolk membrane.