Gastrointestinal tract
The gastrointestinal tract, also known as the gut or alimentary canal, is a tube by which bilaterian animals (including humans) transfer food to the digestion organs. In large bilaterians, the gastrointestinal tract generally also has an exit, the anus, by which the animal disposes of solid wastes. Some small bilaterians have no anus and dispose of solid wastes by other means (for example, through the mouth).
Animals that have gastrointestinal tracts are classified as either protostomes or deuterostomes. The digestive tract evolved separately in these two clades, an example of convergent evolution. The clades are distinguished based on their embryonic development: protostomes develop their mouths first, while deuterostomes develop their mouths second. Protostomes include arthropods, molluscs, and annelids, while deuterostomes include echinoderms and chordates.
The gastrointestinal tract contains thousands of different bacteria, but humans can be divided into three main groups based on those most prominent in the human gastrointestinal tract.
Podcasts:
Bowel
ALBUMS
- For the Sick: A Tribute to Eyehategod released: 2007
- Ploughers of Land and Sea released: 2006
Alternative Video Results
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Watch Me Now
by: PlayDon't you cry, don't you look so sad
We both knew somehow this day would come
I know you want what is best for me
And I need to see you smile
From where I started off to where I am
It's a million miles, I can't go back there again
But no matter where I go from here
You will be part of me from now on
For every door that opens up
When another has to close
You got to trust me now
Be strong and let me go
Watch me now as I go my way
The time has come
And I gotta say I'm not afraid
Watch me now, every step I take
I feel stronger, so much stronger
The road ahead is a mystery
Your love is here
Oh and I believe inside of me
Watch me now, I can stand my ground
I will be alright, yes I'll be alright
You were someone who believed in me
When I wasn't even sure of myself
And I always will remember how
You were always there to help
And I heard so many things from you
And I'm ready now to try them out in the world
Though it hurts too much to say goodbye
We both know (We both know)
There's no other way
I will feel your loving arms
When I'm out there in the cold
'Cause all of my thoughts of you
Will still be mine to hold
Watch me now as I go my way
The time has come
And I gotta say I'm not afraid
Watch me now, every step I take
I feel stronger, so much stronger
The road ahead is a mystery
Your love is here
Oh and I believe inside of me
Watch me now, I can stand my ground
I will be alright, yes I'll be alright
You will find me running back sometime
When I really need a guiding hand
We'll be closer than we were before
And I know that you will understand
I know you'll understand
Watch me now as I go my way
The time has come
And I gotta say I'm not afraid
Watch me now, every step I take
I feel stronger, so much stronger
The road ahead is a mystery
Your love is here
Oh and I believe inside of me
Watch me now, I can stand my ground
I will be alright, yes I'll be alright
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