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digestive system click to hear : digestive system

Formed of the mouth, digestive tract and appended glands, it converts ingested food so that it can be assimilated by the organism.
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See digestive system in : french | spanish
ileum jejunum duodenum pancreas stomach esophagus pharynx rectum sphincter muscle of anus anus sigmoid colon vermiform appendix cecum ascending colon descending colon transverse colon gallbladder liver salivary glands tongue oral cavity small intestine large intestine

ileum click to hear : ileum

Terminal part of the small intestine between the jejunum and cecum.

jejunum click to hear : jejunum

Middle section of the small intestine between the duodenum and the ileum; the majority of nutrients are absorbed here.

duodenum click to hear : duodenum

Anterior section of the small intestine; secretions from the liver and pancreas, as well as food partially digested in the stomach, empty into it.

pancreas click to hear : pancreas

Digestive gland connected to the duodenum; produces secretions and hormones (especially insulin).

stomach click to hear : stomach

Dilated section of the digestive tract; it stores, stirs and mixes food with the gastric juices it secretes before emptying it into the duodenum.

esophagus click to hear : esophagus

Muscular membranous channel of the anterior section of the digestive tract; it allows food to reach the stomach.

pharynx click to hear : pharynx

Muscular membranous channel connecting the nasal cavity to the larynx and the oral cavity to the esophagus; it enables breathing, ingestion of food and speech.

rectum click to hear : rectum

Terminal section of the large intestine preceding the anus.

sphincter muscle of anus click to hear : sphincter muscle of anus

Muscle ensuring the contraction and relaxation of the anus and enabling defecation.

anus click to hear : anus

Terminal orifice of the digestive tube controlled by a sphincter enabling ejection of fecal matter.

sigmoid colon click to hear : sigmoid colon

Fourth segment of the colon; it carries waste to the rectum.

vermiform appendix click to hear : vermiform appendix

Tubular extension of the cecum; this appendage is occasionally the site of appendicitis, a severe inflammation.

cecum click to hear : cecum

Anterior part of the large intestine; it receives food particles from the ileum.

ascending colon click to hear : ascending colon

First segment of the colon; it absorbs water from food residue before it is excreted.

descending colon click to hear : descending colon

Third segment of the colon; it stores waste before it is eliminated.

transverse colon click to hear : transverse colon

Second segment of the colon (middle section of the large intestine). The right colon (the ascending colon plus half the transverse colon) mainly enables absorption of water.

gallbladder click to hear : gallbladder

Small reservoir where bile secreted by the liver gathers before emptying into the duodenum during digestion. Bile helps in the digestion of fatty substances.

liver click to hear : liver

Viscera secreting substances, including bile, that help digestion and break up certain toxins contained in the blood.

salivary glands click to hear : salivary glands

Each of the three pairs of organs secreting a liquid (saliva) that contains a digestive enzyme; it is used to moisten food to facilitate its ingestion.

tongue click to hear : tongue

Flexible muscular structure of the oral cavity; it helps in tasting, masticating and ingesting food, and also facilitates speech.

oral cavity click to hear : oral cavity

Anterior cavity of the digestive tract enabling ingestion of food; it also aids in breathing.

small intestine click to hear : small intestine

Narrow section of the digestive tract, about 6.5 meters long, between the stomach and cecum, where a part of digestion and food absorption occurs.

large intestine click to hear : large intestine

Last wide section of the digestive tract, about 1.5 meters long, where the final stage of digestion and elimination of waste occurs; it includes the colon and the rectum.