Bio 138 : Digestion pt. 3

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Last updated 12:24 AM on 5/28/26
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21 Terms

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Duodenum (Where digestion completes)

Prox. S. Intestine

Distal stomach

Brunner gland

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pH of Duodenum

7-8

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Jejunum

Absorption

Microvilli - maximize surface area

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Ileum

Distal S. Intestine

Peyer’s patches

Immunity

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Ileocecal valve

Distal s. intestine prox. l. intestine

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Plica circularis

Largest

Villi

Microvilli

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Goblet cell

Secreting mucous

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pH of intestine (alkaline)

7.4-7.8

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Protein digestion location

Stomach

Duodenum

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Protein digestion

Pepsinogen - acid - pepsin

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Pepsin works best at what pH

1.5 - 3.5

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3 enzymes that digest protein

Carboxypeptidase

Trypsin

Chymotrypsin

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Salivary amylase works best at what pH

6.8-7

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Parathyroid hormone

Clasts get activated

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Large intestine ( Smooth surface )

Water reabsorption

Goblet cell

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Regions of large intestine (First 4)

Cecum

Ascending colon

Rt. hepatic flexure

Transverse colon

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Regions of large intestine (Last 4)

Left splenic flexure

Descending colon

Sigmoid colon

Rectum

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Taenia coli

Longitudinal smooth muscle

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Haustra

Pouches

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Internal anal sphincter

Smooth muscle

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External anal sphincter

Skeletal muscle