trophonema

[医] 绒毛

词形变化

trophonemata 复数 trophonemata

释义与例句

n.
  1. 1.

    Any of several glandular villi of the uterus of viviparous sharks which supply nutrient to the embryos

    The trophonema consists of 50–60 trophocytes that maintain contact with <1% of the oocyte surface and forms a circular, bowel-shaped depression on the luminal surface of the gastrodermis as they sink into the mesoglea with the oocyte.

词源

From tropho- + -nema (“filament”).

来源：wiktionary