Pages

Monday, January 30, 2012

Digestive System

Pinagawa na naman ako ng project ng landlady ko. Ayaw ko naman tanggihan kasi pampabago din yun ng pangalan sa boarding house. Proteksiyon na din just in case na madelay ang bayad ko sa future, naku, huwag naman sanang pahintulutin. haha.

Pero naeenjoy ko din ang mga pinapagawa niya sa kin. Dati pinagawa niya ako ng book report about sa Kite Runner. Tapos nitong kamakailan lang, nagpagawa naman ng tula, madali lang naman para sa akin ang tula, pero ang catch, dapat tungkol sa math! MATH na pagkahirap hirap, math na walang kamalay malay, math na kulang nalang isumpa ko nung nagaaral ako.

At ngayon ang peg ay ganito, kunwari may absent kang classmate, tapos susulatan mo siya ng isang letter na magdidiscuss ng isang lesson about sa system ng body. Pak na pak ang Biology teacher niya, ang daming alam, susme, kung ganito ang teacher ko dati, hindi ko na alam kung ano ang nagawa ko. Napakacreative ng teacher niya ano? Sobrang nakakastress.

Anyways ginawa ko naman siya. Tignan niyo kung pwede na. :)

Dear Friend,

I noticed that you’ve been absent for several days now, they said you had a fever that keeps on coming back. That seems so sad. I hope you are feeling better now.

While you were gone, our Biology teacher taught us a pretty interesting subject. He talked about the digestive system, its functions and importance. As you know, foods are important to the body, they give us energy that we need to get through the day. But I never expected that it will be a long process for food to be converted into nutrients.

Imagine travelling via train from Manila to Bicol. The train will be the food and drinks that we take in and the railroad track will be the digestive system. It will also have various stop over, that will be the organs that we need to pass in order to get to end of our trip.

Every time we take in food using our mouth, it needs to be broken down into smaller pieces. Your teeth tear off the food. The saliva glands start spewing out spit like fountains. Chemicals in your saliva start chemical reactions. Starch from the food that you take will be converted into smaller pieces of sugar. Then the tongue pushes down the food at the back of your throat. A trap door then opens, and there it goes, down your gullet.

First station will be the esophagus. A muscle action called peristalsis then push the food lower to our next station, the stomach.

The stomach is a small, 'J'-shaped pouch with walls made of thick, elastic muscles, which stores and helps break down food.  Imagine being inside a big pink muscular bag -- sloshing back and forth in a sea of half-digested mush and being mixed with digestive chemicals. Acid rains down from the pink walls which drip with mucus to keep them from being eroded. Our stomach is very important because it has enzymes that kill microorganisms that are ingested in food (pepsin). It can also denature protein which is very important for the body. Food in the stomach is in semi-liquid form, which upon completion is known as chyme.

After travelling the stomach, it will then go to the small intestines.

The small intestines have three parts -- the Duodenum, Jejunum, and Ileum. The majority of digestion and absorption occurs here after the milky chyme enters the duodenum. The small intestine looks like a strange underwater world filled with things that resemble small finger-like cactuses. But they're not cactuses, they're villi. Like sponges, they're able to absorb tremendous amounts of nutrients from the food you eat. From the villi, the nutrients will flow into your bloodstream. 

Second to the last station will be the large intestine. It's much wider and much drier. This is where you will find that the leftovers getting smaller, harder and drier as they're pushed through the tube. After all, this is the place where water is extracted and recycled back into your body. In fact, the leftovers that leave your body are about 1/3 the size of what first arrived in your intestines! Cool, right?

Then, we will reach our final destination. Now the drier leftovers are various handsome shades of brown. They sit, at the end of their journey, waiting for you to expel them -- out your anus. Of course, you know the rest! A glorious, if slightly stinky, journey, don't you think? 

I hope this letter will help you once you get back at school. We hope that you get well soon. Don’t forget to eat a lot of healthy foods and drink a lot of water.

Now class, I hope you learn something about the body’s digestive system. Sana lang maganda ang grade ng anak niya pagpasa nito. para at least worth it naman ang pagod ko dito.

isa lang ang narealize ko, nakakamiss mag aral ulet.

6 comments:

  1. clap clap clap. dapat may pay ka na diyan halos tutorial na yan ahh

    ReplyDelete
    Replies
    1. naku, sir, inaabutan naman ako, pero hindi naman much.

      Delete
  2. anong level ito? at saang school? kasi i don't remember hearing about duodenum, jejunum, and ileum in gradeschool nor highschool. they introduced to me in college. iba na mga bata ngayon ah.

    ReplyDelete
    Replies
    1. hey justin, welcome. Its a science high school. Ganun talaga sa mga ganitong school, high school palang, complicated na ang life mo.

      Delete
  3. Um nakakaloka ang assignment ng bagets ha. Haha you lost me when you go to the intestines though. Haha but I thought it was nice na kahit imaginary lang yung friend, ineffort mo parin maging super nice. :)

    ReplyDelete
    Replies
    1. haha.. salamat nyl. yeah nakakaloka nga siya, hindi ko alam na ganito na pala ang mga assignments ng students ngayon.

      Delete