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Body system

Digestive system

Systema digestorium

Function: Breaks food into nutrients the blood can absorb and removes what is not digested.
Includes: Mouth, oesophagus, stomach, small and large intestines, helped by the liver, pancreas and gallbladder.¹²

Drawing of the stomach joined to the oesophagus above and the small intestine below — The stomach, joined by the oesophagus above and by the start of the small intestine below.Educational illustration (AI-generated) — not a medical image

Organs of this system

Educational illustrations, not medical images.

A short overview linking this part to related content.

Conditions that affect it

Includes

Imaged with

EndoscopyProcedure

Specialty

GastroenterologySpecialty

Related to

References

1
NIDDK / NIH. Your Digestive System & How It Works. www.niddk.nih.gov/health-information/digestive-diseases/digestive-system-how-it-works
Health agencies & guidelines · Accessed 2026-10-11
2
NCI SEER Training. Digestive System. training.seer.cancer.gov/anatomy/digestive/
Educational & historical references · Accessed 2026-10-03