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Digestive System. Chapter 38. Parts of the system: Mouth, pharynx, esophagus, stomach, small intestine, Large intestine Accessory organs: Salivary glands, pancreas, liver. Mouth: Teeth tears food into small bits and helps to mix saliva with the food

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Digestive system

Digestive System

Chapter 38


Digestive system

  • Parts of the system:

  • Mouth, pharynx, esophagus, stomach, small intestine, Large intestine

  • Accessory organs:

  • Salivary glands, pancreas, liver


Digestive system

  • Mouth:

  • Teeth tears food into small bits and helps to mix saliva with the food

  • Salvia from the salivary glands contain enzymes to begin the digestive process

  • Tongue will shape the food into a ball called a bolus, it’s now ready for swallowing


Digestive system


Digestive system



Digestive system


Digestive system

  • Villi the flow of food out of the stomach- small fingerlike projections

    • Increase the amount of surface that food passes over

    • Villi contains blood vessels. Nutrients pass via diffusionfrom intestines to blood

  • Travels thru the body and nutrients diffuse out into cells that need the nutrients


Digestive system


Digestive system


Digestive system

  • Large Intestines (colon) large and small intestines meet. May have once helped to break down cellulose

  • Parts of: Ascending, transverse, descending, sigmoid, rectum, anus

  • This is where e.coli resides. It feeds on undigested food and releases vit. K

  • Main function is to remove water from the undigested food


Digestive system


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