| 单词 | gill pore |
| 释义 | > as lemmasgill pore gill pore n. a small rounded gill opening, esp. that between the gill pouch and the exterior in acorn worms. ΚΠ 1879 tr. E. Haeckel Evol. Man I. xiii. 425 On each side of this ventral seam, on the inner surface of the gill-roofs, directly in front of the gill-pore (porus branchialis) [Ger. Kiemenloch]..lie the kidneys of the Amphioxus. 1902 Encycl. Brit. XXVI. 85/1 Each gill-slit may be said to open into its own..gill-pouch; this in its turn opens to the exterior by a minute gill-pore. 1967 P. A. Meglitsch Invertebr. Zool. xii. 427/1 The gill pores are usually guarded by sphincter muscles. 2016 N. Satoh Chordate Origins & Evol. vi. 86 (caption) Four transcription factor genes in a cluster are expressed in the pharyngeal/foregut endoderm of juvenile Saccoglossus. (a) Nkx2.1 is expressed in a band of endoderm at the level of the developing gill pore. < as lemmas |
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