DISK PROLIGERUS
\dˈɪsk pɹˈɒlɪd͡ʒəɹəs], \dˈɪsk pɹˈɒlɪdʒəɹəs], \d_ˈɪ_s_k p_ɹ_ˈɒ_l_ɪ_dʒ_ə_ɹ_ə_s]\
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Syn.: embryonic area, germinal disk. In oviparous animals, a granular disk immediately beneath the vitelline membrane, marking the beginning of the formation of the blastoderm. Viewed crosswise, it has the appearance of an umbilicus, whence it has also been termed the cicatricula. From the disk it projects inward in the form of a conelike granular accumulation, the cumulus proligerus, encroaching on the vitellus.
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.