Digetsive System
Описание Раскадровки
We will learn/review all the parts of the digestive system!!!
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Текст Раскадровки
- Salvary GlandsMouth
- Trachea/ Windpipe
- Esophagus
- Lower Esophagal Sphincter
- Peristalsis
- Stomach
- Cells outline
- Enzymes
- Acid
- Did you know, digestion starts even before food gets into the mouth. Salviirary glands get active when people see or smell food. The mouth is the beginning of the digestive system. It breaks down the food into small pieces easy to swallow. Saliva is mixed into the food so it can break down into a form that the body can absorb and can be useful.
- Small intestine + Large intestine
- Nutrients
- The esophagus is the tube that connects the mouth and the stomach. It receives food from the mouth and pushes it down to the stomach. There are some muscular contractions called peristalsis that open and close to keep food from getting to the stomach very fast (that can cause damage). There is a flap that is aboove the trachea (windpipe), which is called the epiglottis which prevents food from coming into the trachea (which will make you choke). There is a ring-like muscle called the lower esophagal sphincter, which is near the bottom at the esophagus. It has to relax to let the food in, and then contractes to keep the food to come into the esophagus.
- Rectum + Anus
- The stomach or the ´´container´´ holds the food until it is mixed with enzymes and strong acid, secreted by the cells in the stomach. Then, the food is released into the small intestine.
- Evacuation
- The small intestine (left) absorbs all, the nutrients, vitamins and proteins from the food (for the bloodstream) & then gives what is left from the food to the large intestine. The large intestine (right) absorbs all the water & salts from the food, and then gets rid of the waste.
- Proteins
- Vitamins
- The rectum (left) gets all the stool, and keeps it in until it is time to evacuate it to the anus. The anus (right) is surround with musculare sphincters. The internal sphincter is always tight until stool comes. It lets us know there is stool to be evacuated. When, we have the urge to go to the bathroom , we rely on our external sphinccter to hold the stool until evacuation.
- Evacuation, happens when you poop out all the stool out. Then digestion has finished its job.
- Stop looking at me!!! I am doing my buisness!!
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