鰓さい弓きゅう

noun

branchial arch; gill arch

Anatomical term used in biology and medicine for the skeletal elements supporting the gills in fish and the embryonic structures in vertebrates.

• 魚さかなの鰓さい弓きゅうはえらを支ささえる骨こっ格かくである。

  The branchial arches of fish are the skeletal structures that support the gills.

• ヒトの胚発生はいせいでは、鰓さい弓きゅうが顎あごや耳みみの骨ほねに分ぶん化かする。

  In human embryonic development, the branchial arches differentiate into the bones of the jaw and ear.