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Transcript of Digestion Story
I was the last one on the plate. I tried to blend in with the rest of the fruits on the plate but it was no use. One by one Albert picked us up and plopped us in to his wide-open mouth. I thought this was the end but I was mistaken. Fighting for my life and trying not to pay attention to Albert's stank breath, I survived.
Even though Albert is a human this is how he eats.
By Michelle Turenne
In this project, I will be creating an educational story for children from the point of view of a piece of food moving through the digestive system. This poor unfortunate watermelon will go from being it's happy, dandy little self to being EATEN ALIVE! But don't worry, in the end it will survive.
The teeth, tongue, and salivary glands. Also, the place where i got chomped.
I'm sure you all know what happens in the esophagus so to refresh your memory...The role of peristalsis in the digestive system is that it is the way food is propelled down the esophagus and in to the stomach; then peristalsis moves the digested food through the small and large intestine and then through the rectum and anus. It is a series of smooth muscle contractions and relaxations moving food in a wave-like manner through the different processes in the gastrointestinal tract.
I was in Albert's stomach. I'm sure that all of you know what the stomach does, but for those of you who don't pay attention in school, I guess I should probably tell you.The stomach secretes acids and enzymes that digest food. Ridges of muscle tissue called Rugae line the stomach. The stomach muscles contract periodically, churning food to enhance digestion. The pyloric sphincter is a muscular valve that opens to allow food to pass from the stomach to the small intestine.
The Duodenum of the Small Intestine Being Squirted by Pancreatic Juices
I was in the Duodenum of the small intestine being soaked in pancreatic juices and it felt like I was at the kids choice awards being covered in slime. For those of you who don't know what pancreatic juices are, pancreatic juice is thick, colorless, very alkaline fluid secreted by he pancreas, containing enzymes that beak down proteins, fat, and starch.
OMG ITS A MOUTH MADE OF WATERMELON
The Duodenum of the Small Intestine Being Squirted by Bile
I am sure that none of you want to hear about this but I have to tell you so here it goes: Bile a bitter greenish-brown alkaline fluid that aids digestion and is secreted by the liver and stored in the gallbladder. Also, you might be wanting a little more in-depth information on Bile so let me tell you this much: Bile or gall is a dark green to yellowish brown fluid, produced by the liver of most vertebrates, that aids the digestion of lipids in the small intestine. In humans, bile is produced continuously by the liver, stored and concentrated in the gallbladder, and when the organisms eats, is discharged in to the duodenum. The composition of gallbladder bile is 97% water, 0.7% bile salts, 0.2% bilirubin, 0.51% fats, and 200 meq/l inorganic salts.
The Small Intestine
Being inside the small intestine was really fun. The whole time I was in there these little finger-like thingies called
kept tickling me and it felt really weird. Let me tell you more about my journey through the small intestine.
The small intestine is a long, highly convoluted tube in the digestive system that absorbs about 90% of the food we eat. It is given the name small intestine because it is only one inch in diameter, making it less than half the diameter of the large intestine. The small intestine is, however, about twice the length of the large intestine and usually measures about 10 feet in length.
In all humans, the villi and the microvilli increase intestinal absorptive surface area approximately 30-fold and 600-fold, respectively, providing exceptionally efficient of absorption of nutrients in the lumen. This increases the surface area so there are me places for food to be absorbed. Villi are specialized for absorption in the small intestine and they have a thin wall, about one cell thick, which enables a shorter diffusion path. They have a large surface area so there will be more efficient absorptions of fatty acids and glycerol in to the bloodstream.
The Large Intestine
OK people I am about to spill the beans about what I saw happening when i was on my journey through the large intestine. You have to promise that you will keep it a secret or else i cant tell you (class says "i promise"). OK then i think we are all set here goes nothing: The large intestine, also called the colon or the large bowel, is the last part of the digestive system in vertebrates. Water is absorbed here and the remaining waste material is stored as feces (poop) before being removed by defecation (pooping). Some websites and books such as "Medscape" and "Gray's Anatomy" define the large intestine as a combination of the cecum, colon, rectum, and anal canal.In humans, The large intestine begins in the right iliac region of the pelvis, just at or below the waist, where it is joined to the end of the small intestine. It then continues up the abdomen, across the width of the abdominal cavity, and then down to its endpoint at the anus. All in all, in humans, the large intestine is about 1.5 meters (4.9 ft) long, which is about one-fifth of the whole length of the intestinal canal.
Rectum and Anus
I know that none of you want to here about the rectum and anus and trust me I don't want to bring back those memories either, but it is for your own good that I share with you this tragic process.
The rectum provides temporary storage for feces before they are gotten rid of or pooped out. As the rectal walls get bigger due to collecting feces, stretch receptors in the rectal walls stimulate the desire to defecate. Peristaltic waves then push the feces out of the rectum.
The anus controls the expulsion of the feces. The flow of feces through the anus is controlled by the anal sphincter muscle. The internal and external sphincter muscles relax, allowing the feces to be passed by muscles and pulling the anus up over the exiting poo.
I think Albert was at his school when he pooped me out, because there were definitely other people in that restroom. It smelled SO BAD that i thought i was going to die but then somebody sprayed some Frebreeze then i was going down a swirly slide and the rest of it was just a blur. Now you have heard my digestive story! Stay in school kids!
(each chicken has a digestive system so its really look at all those digestive systems)