What are you thinking now?

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11-30-2007, 09:06 AM
vheissu

Quote:

Originally Posted by Pensive

How can digestion occur in esophagus? It's just a path where the food moves to reach stomach. That doesn't make sense. Why was she so sure about it?

Does anybody here think that digestion occurs in esophagus as well? I am still confused. A Biology teacher can't think so or perhaps I am wrong. :(

hmm...can't remember all the details, but I tought real digestion started in the stomach (gastric acid and all that) and then was passed to small intestine. Have you looked it up in a book?

the joys of anatomy...

why can't I quit drinking so much coffee??
11-30-2007, 10:48 AM
Pensive

Quote:

Originally Posted by vheissu

hmm...can't remember all the details, but I tought real digestion started in the stomach (gastric acid and all that) and then was passed to small intestine. Have you looked it up in a book?

Actually, no. Digestion starts in the buccal cavity. The teeth do the physical digestion and the amylase (with the help of hydrogen carbonate to provide it with alkaline conditions as it only works in alkaline conditions) works upon starch molecules to turn it into maltose (smaller unit of carbohydrates) but yes, it doesn't work upon larger molecules such as that of proteins.

After it, it passes through esophagus, and as much as I have read (and for this topic digestion I have consulted two books and internet too), there seemed to be no mention in any of them about digestion being done there. Now our teacher mentioned that it is. I am curious how it can be. There seems to be no activated enzyme there (as far as I know)... Probably it was a slip of tongue by her but I would lose hell of marks in the test if it turns out to be that in esophagus, digestion happens.
11-30-2007, 11:12 AM
kiz_paws

Skin freezes in less than two minutes right now (it is minus 32 Celcius in my backyard -- with the windchill factor). :sick: Snow looking good, mind you!
12-01-2007, 07:13 AM
Gadget Girl

I need to think new ideas!
12-01-2007, 07:16 AM
chasestalling

gosh, what would i ever do without coffee
12-01-2007, 09:18 AM
Wyoecho

I wish I could go back and start over
12-02-2007, 12:50 AM
kiz_paws

PeeWee Herman's bike was wild...
12-03-2007, 06:54 PM
Niamh

I really have to go to bed. I'm in work in six hours!
12-03-2007, 06:54 PM
browneyedbailey

Kids, Shutup!!!!!!!!
12-03-2007, 06:58 PM
PanzaFan

Quote:

Originally Posted by browneyedbailey

Kids, Shutup!!!!!!!!

Wow, you read my mind.
12-03-2007, 07:20 PM
browneyedbailey

Ha ha ha ha!!
12-03-2007, 07:38 PM
Annamariah

I'll have to wake up in less than five and a half hours, so I guess I'd better go to sleep before that o_O
12-04-2007, 11:26 AM
muhsin

Can't say exactly...don't know why?
12-04-2007, 11:53 AM
Lily Adams

Whoah, whoah, whoah! I don't have much time to get to a library, that's the problem! I'll try and get on LitNet as much as I can, though! It'll only be a week, apparently. Thanks, everyone. :) I miss you.
12-05-2007, 03:10 PM
kilted exile

Why do manafacturers insist on using allan keys instead of nuts & bolts. Stupid, annoying pieces of crap. I can put a unit together in 5mins if I can use my ratchet set, but no they make me use this garbage. GRRRRR!!!!!!!!