Mini Quiz 6 Integumentary System 1. Give one example of an adaptive feature of the integumentary system? Which layer of the epidermis is the youngest, is going through mitosis producing cuboidal cells (that will later flatten), and surrounded by the malphigian layer in which melanocytes produces melanin? What is the function of capillaries embeded in skin layers? What onion shaped nerve tissue allows you to feel constant pressure? Draw your finger nail and label the parts. What are three ways in which the body conserves heat when the environment is cold? Which form of skin cancer is the least dangerous as it is usually contained, easily removed in full, and does not usu. metasticize? What is the effect of a 2nd degree burn? If the front and back of one leg was burned, what % of the body would be burned according to the rule of nines?

Integumentary System A1 1. Give one example of an adaptive feature of the integumentary system? (a) calluses on feet (bare feet on rough surfaces) protect underlying tissues from damage (b) skin darkens in response to sun (prevents sunlight from damaging under layers of skin) (c) skin stretches as it grows & during pregnancy (instead of tearing & exposing internal organs) (d) stress – physical increases alopecia (thinning) and emotional increases hair growth 2. Which layer of the epidermis is the youngest, is going through mitosis producing cuboidal cells (that will later flatten), and surrounded by the malphigian layer in which melanocytes produces melanin? Stratum Germinatavium (Basale)

Integumentary System A2 3.What is the function of capillaries embeded in skin layers? Thin blood vessels that allow O2 and nutrients to diffuse out of the blood stream into the surrounding tissues. 4.What onion shaped nerve tissue allows you to feel constant pressure? Pacinian 5.Draw your finger nail and label the parts. 6. What are three ways in which the body conserves heat when the environment is cold? Counter current blood flow, vasoconstriction, shivering

Fingernail

Integumentary System A3 7. Which form of skin cancer is the least dangerous as it is usually contained, easily removed in full, and does not usu. metasticize? Basal cell carcinoma What is the effect of a 2nd degree burn? Redness, Blisters, Swelling - Epidermis and Upper Dermis Destroyed 9. If the front and back of one leg was burned, what % of the body would be burned according to the rule of nines? 18% (9% front and 9% back)