ANP 1106 Lecture Notes - Lecture 2: Stratum Granulosum, Stratum Corneum, Stratified Squamous Epithelium

• School: University of Ottawa
• Department: Anatomy and Physiology
• Course: ANP 1106
• Professor: William Staines

Document Summary

Quantities and types of melanin produced are coded by dna. Determined tanning ability and protection against melanoma (skin cancer) Cytoplasm full of lamellar granules - release lipids. Semi-fluid matrix embedded with collagen, elastin, and reticular fibers. B. 2. richly supplied with nerve fibers, blood and lymphatic vessels, hair follicles, and oil and sweat glands. C. 1. b. interwoven mat of areolar ct fibers interspersed with blood vessels. C. 1. c. 1. contain capillaries & nerve endings for touch, pain. C. 1. c. 3. overlie dermal ridges on palms of hands, soles of feet to give us epidermal ridges known as friction ridges. C. 2. c. thick bundles of collagen fibers parallel to skin surface. C. 2. c. 1. source of lines of cleavage (tension) lines. C. 2. d. collagen fibers give strength & resiliency & maintain skin hydration. Happen when the skin can"t grow fast enough to keep up with other growth. Separation of the dermis and the epidermis as a result of rubbing friction. Also can be a response to heat or chemical damage.