Microanatomy of
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| What are the subparts of the microanatomy of the Small Intestine? | 1. Plicae Circularis; 2. Villi; 3. Intestinal Glands; 4. Goblet Cells; 5. Tunica
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| What are the Plicae Circularis? | Circular Folds - increase surface area
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| What are Villi? | VASCULAR projections from the Tunica Mucosa - improve absorption
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| What is the function of Intestinal Glands? | secrete Digestive Enzymes
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| What is the function of Goblet Cells within the Small Intestine? | secrete Mucus to PROTECT Epithelial Cells
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| What are the layers of the Tunica of the Small Intestine from the inside --> outside? | 1. Tunica Mucosa; 2. Tunica Submucosa; 3. Tunica Muscularis; 4. Tunica Serous
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| What are the layers of the Tunica Mucosa of the Small Intestine? | 1. Simple Columnar Epithelium; 2. Lamina Propria; 3. Muscularis Mucosa
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| What is Lamina Propria and where is it found? | the underlying Connective Tissue with Blood Capillaries and Lacteals - 2nd layer of Tunica Mucosa
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| What is the composition of the Muscularis Mucosa and where is it located? | Smooth Muscle - 3rd layer of the Tunica Mucosa
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| What is the 1st layer of the Tunica Mucosa? | Simple Columnar Epithelium
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| What is the histology of the Tunica Mucosa? | Mucous Membrane
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| What is the histology of the Tunica Submucosa? | Areolar Tissue
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| What is the Tunica Submucosa? | longitudinal group of Vessels, Nerves Lymphatics
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| What is the histology of the Tunica Muscularis? | Smooth Muscle
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| What are the sub-layers of the Tunica Muscularis? | 1. Circular Layer (slinky); 2. Longitudinal Layer (straight)
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| What is the function of the Tunica Muscularis? | contributes to GI Peristalsis - shortening & squeezing motion
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| What is the histology of the Tunica Serous? | Simple Squamous Epithelium & Connective Tissue
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| What is the function of the Tunica Serous? | OUTERMOST - Supportive layer - AKA Visceral Peritoneum
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