DIGESTIVE SYSTEM Function Length and Time MOUTH Function

MOUTH Function: � Both mechanical and chemical digestion begins in the mouth. Mechanical =

ESOPHAGUS Function: � Muscular tube that connects the mouth to the stomach. Food travels

STOMACH http: //www. youtube. com/watch? v=SWMWs OXl. Bw. E Function: �A J-shaped, muscular pouch

SMALL INTESTINE Function: � Where almost all chemical digestion and absorption of nutrients takes

LARGE INTESTINE Function: � Holding tank of the digestive system. Final absorption of water

THE DIGESTIVE SYSTEM Total Length � 29 feet 8 inches/9 meters Total Time �

NOTE CARD/STRING NOTES Materials 6 Index Cards � Digestive system Notes � String/yarn �

Directions 1. Write the NAME, LENGTH, TIME of each part of the digestive

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DIGESTIVE SYSTEM • Function, Length, and Time

MOUTH Function: � Both mechanical and chemical digestion begins in the mouth. Mechanical = Teeth Chemical = saliva (enzymes) Length: � 3 inches/10 cm Time: � On average 30 seconds to chew food thoroughly

ESOPHAGUS Function: � Muscular tube that connects the mouth to the stomach. Food travels down your Esophagus through the process known as Peristalsis. Length: � 10 http: //www. youtube. com/watch? v=o 18 Uyc WRsa. A inches Time: � 10 seconds

STOMACH http: //www. youtube. com/watch? v=SWMWs OXl. Bw. E Function: �A J-shaped, muscular pouch located in the abdomen where mechanical and some chemical digestion occurs. Length: � Around 6 inches plus/16 cm plus Time � 3 hours for complete mechanical digestion

SMALL INTESTINE Function: � Where almost all chemical digestion and absorption of nutrients takes place. Length � 20 -25 ft. (for this class, just put 15 ft. ) � 2 -3 cm in diameter Time � Upwards of 6 hours.

LARGE INTESTINE Function: � Holding tank of the digestive system. Final absorption of water into the bloodstream. Remaining material is readied for elimination as feces/poop. Length � 4 -5 feet/1. 5 meters (put 5 ft. for our class) Time � Upwards of 2 days/30 -40 hours

THE DIGESTIVE SYSTEM Total Length � 29 feet 8 inches/9 meters Total Time � Up to 49 hours

IDENTIFY A B C D E F

NOTE CARD/STRING NOTES Materials 6 Index Cards � Digestive system Notes � String/yarn � Markers � Directions � On next slide

Directions 1. Write the NAME, LENGTH, TIME of each part of the digestive system on an individual note card. 2. Draw a colored illustration of the organ/part of the digestive system Length of string between each note card to be: 3. • • • Mouth to Esophagus = 3 inches Esophagus to Stomach = 5 inches Stomach to Small Intestine = 10 inches Sm. Intestine to Lg. Intestine = 15 feet Lg. Intestine to Colon (EXIT) = 5 feet Attach the string to your card at the appropriate distance between each part. 4. • Use tape to attach your string to the card.