[ZOO 3000] - Midterm Exam Guide - Ultimate 36 pages long Study Guide!
6 Feb 2017
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Muci-carmine stain vs. h&e stain (fill chart and check list at the end of lab section 6 for good practice) Intercalated duct (see textbook p. 563 and internet for pics) Trichrome stain vs. h&e and other dyes. Renal tubules: proximal convoluted tubules (microvilli, filled, distal convoluted tubules (no microvilli, empty) Divided into: oral cavity, tubular parts, associated glands. Composed of epithelium, lamina propria and muscularis mucosae. Blends with connective tissue of mesentary to attach tract to wall of abdomen. Secretes mucus, hcl, enzymes and hormones (with food = chyme) Has mucous cells to protect from abrasion and acid. Base: chief cells, parietal cells, enteroendocrine cells. Chief cell: pyramidal with basal nucleus, helps digest proteins into peptides by secreting pepsinogen which is converted to pepsin at ph 5. Parietal cells: spherical/pyramidal shape with central nucleus; secretes hcl. Enteroendocrine cells: stain with silver; pyramidal with central nucleus; secretes products into lamina propria, many different secretions.
