trophonema

名词 n.
中文释义

英文释义

名词 n.
  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.

词形变化

trophonemata plural

词源

From tropho- + -nema (“filament”).
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