MeSH Browser

MeSH Heading: Sea Urchins
Tree Number(s): B01.050.500.408.578
Unique ID: D012617
RDF Unique Identifier: http://id.nlm.nih.gov/mesh/D012617
Annotation: general; prefer specifics; sea urchin eggs = OVUM (IM) + SEA URCHINS (NIM) if merely test organism
Scope Note: Somewhat flattened, globular echinoderms, having thin, brittle shells of calcareous plates. They are useful models for studying FERTILIZATION and EMBRYO DEVELOPMENT.
Entry Term(s): Clypeasteroida; Echinoidea; Sand Dollars; Sand-Dollar
Related Numbers: txid31186
Previous Indexing: Echinodermata (1966-1971)
Public MeSH Note: 72
History Note: 72
Date Established: 1972/01/01
Date of Entry: 1999/01/01
Revision Date: 2020/08/13

Allowable Qualifiers: anatomy & histology (AH)

chemistry (CH)

classification (CL)

cytology (CY)

drug effects (DE)

embryology (EM)

enzymology (EN)

genetics (GE)

growth & development (GD)

immunology (IM)

metabolism (ME)

microbiology (MI)

parasitology (PS)

pathogenicity (PY)

physiology (PH)

radiation effects (RE)

ultrastructure (UL)

virology (VI)

Sea Urchins MeSH Descriptor Data 2025