Structure and Function Flashcards by Rachel Wheeler

Q

Digestion

A

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Q

Excretion

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Q

Absorption

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Q

Chyme

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Q

Host Defences

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Q

parts of the digestive system

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Q

Accessory Organs

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Q

where is the GIT composition similiar

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Q

what are villi

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Q

what is the lumen

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Q

Why does the lumen have large surface area

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Q

What is the epithelium layer of the mucosa

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Q

apical surface of the epithelial layer of the mucosa

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Q

lateral surface of the epithelial layer of the mucosa

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Q

basal surface of the epithelial layer of the mucosa

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Q

where are there transport proteins in the epithelial layer of the mucosa

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Q

where and why are tight junctions in the epithelial layer of the mucosa

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Q

transcellular pathway

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Q

paracellular pathway

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Q

layers of the mucosa: lamina propria

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Q

layers of the mucosa: muscularis mucosa

A

Q

Epithelial layer of the mucosa: stem cells

A

Q

what are the crypts in the epithelium

A

Q

How is the epithelial layer of the mucosa replaced

A

Submucosa

Muscularis Externa

Muscularis Externa myenteric nerve plexus

Muscularis externa logitudinal muscle

Gastrointestinal Blood supply

How does blood perfuse to the livefr

what blood doese the liver recieve

Regulation of GI Processes

Gastrointestinal reflexes are initiated by

GI process stimulation promotion receptors

Intrinsic Regulation of GI Processes

what neurons are controled by intrinsic regulation in the GI system

Intrinsic network of neurons

How does the CNS effect the intrinsic regulation of the GI

Extrinsic Neuronal Regulation of GI processes

Sympathetic vs parasympathetic effects

Long neural regulation through reflexes

Endocrine

Neurocrine

Paracrine

Autocrine

Hormonal control of GI activity

general facts about hormones

CCK

Peristalsis

Small intstine motility: segmentation

Basic electrical rhythm

What controls the force of contraction and frequency of contraction