BIO SCI 94 Lecture Notes - Lecture 24: Melanocyte, Integumentary System, Dentin

• School: UC-Irvine
• Department: Biological Sciences
• Course: BIO SCI 94
• Professor: Michael Clegg

Document Summary

Note title: list the functions of the integumentary system. Respiration (some: draw and describe the general structure of skin. Include all layers, cell types, fibers, tissues, and muscle: describe and define the 4 different types of chromatophores: melanocytes, iridophores, xanthophors, and erythrophores. They produce melanin; reflect: brown, black, and red. It is found in animals with high resisting metabolism (endothermic aka warm blooded) The larger they are or if there are a whole bunch of them, the darker you are. Are stacks of cystals bending and reflect light. Are in animals with low resting metabolism (exothermic aka cold blooded) Are in animals with low resting metabolism (exctothermic) Are in animals with low resting metabolsim (exctothermic) Mammals have melanocytes: describe and define the four different types of hard tissues derived from the skin: enamel, enameloid, In embryo - ameoblast = epithelia cell. Make protein --> amelogenin --> tightly bind to ca++ & cell surface.