1. the inner germ layer that develops into the lining of the digestive and respiratory systems
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How To Use hypoblast In A Sentence

  • But in all other animals the ovum first grows into two primary layers, the outer or animal layer (the ectoderm, epiblast, or ectoblast), and the inner or vegetal layer (the entoderm, hypoblast, or endoblast); and from these the tissues and organs are formed. The Evolution of Man — Volume 1
  • The proembryo from zygotic cell divisions may be divided into three parts: proper , hypoblast and suspensor.
  • There is no evidence that mesoblastic tissues can be converted into those of the epiblastic or hypoblastic type, or vice versa_. "[ Q. E. D., or New Light on the Doctrine of Creation
  • The blastosphere of the frog is like what the blastosphere of amphioxus would be, if the future hypoblast cells were enormously larger through their protoplasm being diluted with yolk. Text Book of Biology, Part 1: Vertebrata
  • Gastrula: that embryonic stage resembling a sac, with an outer layer of epiblastic cells and an inner layer of hypoblastic cells. Explanation of Terms Used in Entomology
  • Walls of the coelomic pouches, which form (a) an inner lining to the epiblast, (b) an outer coating to the hypoblast, and (c) the mesentery (m.), by which the intestine is supported. Text Book of Biology, Part 1: Vertebrata
  • But the notochord in the fowl is not so distinctly connected with the hypoblast, and so distinct from the mesoblast, as it is in the lower type, and no gills, internal or external, are ever developed. Text Book of Biology, Part 1: Vertebrata
  • The _lateral fistula of the neck_ -- formerly described as a branchial fistula -- according to Weglowski, usually takes origin from the remains of the hypoblastic diverticulum, which arises from the pharyngeal part of the third visceral cleft and extends downwards to form the thymus gland. Manual of Surgery Volume Second: Extremities—Head—Neck. Sixth Edition.
  • The former is often also called the ectoblast, or epiblast, and the latter the endoblast, or hypoblast. The Evolution of Man — Volume 1
  • The hypoblastic notochord is early embraced by a mesoblastic sheath derived from the protovertebrae. Text Book of Biology, Part 1: Vertebrata
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