Search Ontology:
Anatomy Ontology

testis

Term ID
ZFA:0000598
Synonyms
  • testes
Definition
Male reproductive organ. Adult zebrafish testes are paired organs forming elongated structures, internally organized into tubules. These tubules are formed by seminiferous epithelium containing cysts of spermatogonia and spermatocytes surrounded by somatic support cells, called Sertoli cells. Cysts are arranged around a lumen containing spermatozoa that is connected to the efferent ducts. The interstitial regions between the tubules contain the steroid-producing Leydig cells, connective tissue, and blood vessels. (1)
Appears at
Larval:Days 21-29 (21d-30d, 7.8mm, 10 teeth)
Evident until
Adult (90d-730d, breeding adult)
References
  • TAO:0000598
Ontology
Anatomy Ontology
Relationships
is part of
has parts
is a type of
Expression
Genes with most Figures
Antibody Labeling
Phenotype
Phenotype caused by Genes