DIGESTIVE SYSTEM

Pregunta	Respuesta
Digestive tract	Also called the gastrointestinal tract, is a long twisting tube that starts at the mouth and ends at the anus.
Secretions	Contain substances involved in breaking down or digesting food.
Accessory glands	Are complex organs that secrete substances into the digestive tract.
Mouth	Is the entrance to the digestive tract.It is closed by the lips.It leads to the pharynx.Contains the tongue and teeths.The salivary glands produce and secrete saliva.
Pharynx	Is a muscular tube that connects the digestive system to the respiratory system.
Epiglottis	Covers the glottis.Stops food from entering the respiratory system.
Oesophagus	It is normally closed,opens when food is ingested.Connects the pharynx to the stomach.
Stomach	It has three layers of muscle that allow it to perform movements to mix food and gastric acid.
Liver	Contains small ducts secreted by the liver cells.
Gallbladder	Is located under the liver.Its function is to store bile.
Pancreas	Is a long narrow gland with two ducts: main pancreatic duct (crosses the hole pancreas)

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	Creado por Paula Rodriguez-Picavea Perez hace alrededor de 6 años