Oocytes

**Definition:** Female germ cells derived from OOGONIA and termed OOCYTES when they enter MEIOSIS. The primary oocytes begin meiosis but are arrested at the diplotene state until OVULATION at PUBERTY to give rise to haploid secondary oocytes or ova (OVUM).

**Tree numbers:** - A05.360.490.690.680 - A11.497.497.600

**Synonyms:** - Ovocytes