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NAL Agricultural Thesaurus
U.S. Department of Agriculture

Concept Breadcrumbs

Fields of Study > anatomy and morphology > embryonic structures > embryonic germ layers
Preferred Term:

embryonic germ layers

Definition:
The three primary germinal layers (ectoderm; endoderm; and mesoderm) developed during gastrulation that provide tissues and body plan of a mature organism. They derive from two early layers, hypoblast and epiblast.
Concept Schemes:
NALT Full
Broader Concept:
embryonic structures
Narrower Concepts:
Related Concepts:
Entry Terms:
  • epiblast
  • germ layers
URI:
https://lod.nal.usda.gov/nalt/317724
Download this Concept:
RDF/XMLCreated 2018-06-07, last modified 2018-11-14