The digestive _system_marina_y_susana
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The digestive system extracts nutrients from food and expels undigested waste. It begins with saliva production in the mouth triggered by smell to help crush food with teeth. Food is then sent as a bolus down the esophagus to the stomach, where strong muscles and gastric juices break it down into a liquid that passes into the small intestine for further digestion and nutrient absorption. Undigested waste then moves to the large intestine and leaves the body through the anus.
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The digestive _system_marina_y_susana
- 2. Funtion of the digestive system Nutriens are the subtances which plants and animals need in order to live and grow. The digestive system is the group of organs in the body that extract nutrients from food and expel undigested waste.
- 3. Digestion 1º Our sense of smell triggers the production of saliva in our mouth. This helps the teeth to crush food. 2º The tongue shapes de food into a ball called a bollus and it is send to the oesophagus. Then it is sent to the stomach. 3º The role of the stomach is to breack down food. It does this by using its strong muscular walls and excreting gastric juices. 4º Once the food is disolved into a liquid, it passes into the small intestine. 5º The waste that our body does not need passes to the large intestine. The soild waste leaves our body through the anus.