Digestive System Lab Questions

1. In this lab the length of the parts of the digestive system were estimated by using different lengths that could be measured outside of the body. Using these lengths and different color string, we created a model of our own digestive systems. It helped us visualize the length of each part and the entire digestive system.

Digestive Organ	Color and Length(cm)
Mouth	blue 13 cm
Esophagus	red 52.3 cm
Stomach	green 19 cm
Small Intestine	711.2 cm
Large Intestine	blue 177.8 cm
Total	973.3 cm

2. My digestive system is about 5.5 times longer than my height. It is able to fit inside my abdomen because it is folded multiple times, so it takes up less space.

3. I predict that it takes about 12 hours for food to move through the entire digestive system. The actual number is about 24 hours. Factors that affect this time is what is being digested ,and the health of the person. 

4. Digestion is basically breaking down food into smaller parts. Organs that help with digestion are the mouth, saliva glands, pharynx, esophagus, stomach, pancreas, liver, and gall bladder. Organs that help with absorption, which is how nutrients are taken from food, are the small intestine and large intestine.

5. I still want to learn how different types of foods are treated by the digestive system.