Unit 5 HBS Review Questions And Answers With Verified Solutions

What are the functions of skin? - Block antigens, protect the inside of the body, sensation, and temperature regulation. What types of tissue make up the layers of the skin? - Epithelial and connective Dermal Papillae - Stimulates hair growth Epidermis - Protect first layer Arrector Pili - Causes hair to "stand up" Nerves - Sensation Blood Vessels - Blood flow Subcutaneus Layer - Padding Hair Follicle - Secrete sebum Sweat Gland - Produce sweat Sebaceous Gland - Oil secretion Dermis - Main layer holding most of the parts of the skin Collagen - Holds everything together for strength and structureElastin - Resume stretch or contract Keratin - Pigment that gives skin, hair, and eyes color What happens to skin as it is exposed to sunlight? - Stimulates production of large melanin granules What happens to skin as a person ages? - Acne clears, thinner epidermis, skin begins to sag, wrinkles, skin loses fat, collagen, and elastin, melanocytes cluster causing age spots 1st Degree Burn - Damages epidermis