Respiration, Digestion, and Excretion Question
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Step one of the digestive process is the mouth , which aids in the digestive process.
The Oropharynx is the second step.
The third, forth, and fifth steps are the Laryngopharynx , Esophagus , and Cardioesophageal Sphincter.
Once the food has gone through each of these steps, it will go to step six which is the stomach , where it will continue to aid in digestion by mixing the food , liquids , and digestive juices .
Steps eight, nine, and ten take place in the small Intestine . They are the duodenum , jejunum , and Ileum where the food is exposed to secretions. The body takes in the nutrients from the food which is know as absorbtion .
Steps eleven through sixteen are when the food passes through the ileocecal valve and cecum , then ascends the colon where fluids and electrolytes are absorbed. The food then travels through the hepatic , transverse , and splenic flexures.
When the food has passed through the flexures, it then goes through steps seventeen through twenty. The food decends the colon , travels through the sigmoid colon and into the rectum and stored until it is excreted out of the anus .