1. Tubular passage of mucous membrane and muscle extending about 8.3 meters from mouth to anus; functions in digestion and elimination
   - alimentary canal, alimentary tract, digestive tract, gastrointestinal tract, GI tract

Derived forms: digestive tubes

Type of: canal, channel, duct, epithelial duct

Part of: digestive system, gastrointestinal system, systema alimentarium, systema digestorium

Encyclopedia: Digestive tube

• genus Halicoeres
• genus Halimodendron
• genus Haliotis
• genus Halocarpus
• genus Halogeton
• genus Hamamelidanthum
• genus Hamamelidoxylon
• genus Hamamelis
• genus Hamamelites
• genus Hamelia
• genus Haminoea
• genus Haplopappus
• genus Hardenbergia
• genus Harpia
• genus Harpullia
• genus Harrisia
• genus Hatiora
• genus Hazardia
• genus Hedeoma
• genus Hedera
• genus Hedysarum
• genus Helenium
• genus Heleodytes
• genus Heliamphora
• genus Helianthemum