Digestion:The GI tract is a long hollow tube that begins:The innermost layer of the
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GI tract is known as the _______ or _______. This is made up of absorptive cells and glands.
Ulcers/Peptic ulcer:
The other layers of the GI tract are compromised of ________. There job is to:
What are the organs apart of the digestive process, but not apart of the
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