VITELLARY MEMBRANE
\vˈa͡ɪtə͡ləɹi mˈɛmbɹe͡ɪn], \vˈaɪtələɹi mˈɛmbɹeɪn], \v_ˈaɪ_t_əl_ə_ɹ_i m_ˈɛ_m_b_ɹ_eɪ_n]\
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The egg m. formed by the protoplasm of the ovum and immediately surrounding it, in contradistinction to an egg m. formed by the follicular epithelium or the epithelium of the oviduct.
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The investing m. of the vitellus of an ovum. In the fecundated ovum it becomes the chorion. See also zona pellucida.
By Smith Ely Jelliffe
Word of the day
Platidiam
- An inorganic water-soluble platinum complex. After undergoing hydrolysis, it reacts DNA produce both intra interstrand crosslinks. These crosslinks appear to impair replication and transcription of DNA. The cytotoxicity cisplatin correlates with cellular arrest in G2 phase cell cycle.