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Details for anatomical structure: atrium of heart

EndoNet ID: ENC00274

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atrium of heart, atria of heart, Atrium cordis

General information

The upper thin-walled chambers of each halve of the heart that pump blood into the ventricles

Links to other resources

Cytomer cy0052259

Larger structures

  • circulatory_system__hematopoietic_system
  • heart
  • parts_of_human_body


  • cardiac_myocyte
  • macrophage
  • fibroblast

Secreted hormones


    • Receptor: 5-hydroxytryptamine receptor 4

    • Receptor: PAF-R