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Unformatted text preview: c. Keratinized cells - hardened, protective barrier d. Sebaceous (oil) glands → sebum (oil) → fatty acids → acid pH (4.0-5.0) e. Sweat glands → secrete perspiration - ↑ NaCl, enzymes (lysozymes) 1 2. Mucus membranes (m.m.) a. Multilayered structure b. Coated with protective layer mucus - cleanses surface, removes microbes. c. Mucus contains enzymes, may be acid, etc. d. In RT m.m. are ciliated 1). Traps microbes 2). Beating action → movement mucus → mucociliary escalator (Ex.: lining bronchi) 3. Eyes a. Eye lids, eye lashes - mechanical protection b. Conjunctiva - m.m., coated with mucus c. Tear glands - secrete tears 1). Mechanical washing action. 2). Contain ↑ NaCl, ↑ concentrations lysozymes - lysis cell walls (murein) 2...
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This note was uploaded on 01/23/2012 for the course MCB MCB2010 taught by Professor Smith during the Fall '09 term at Broward College.
- Fall '09