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Across 3. larger part of the nail 7. The hair bulb sits in a sac-like pit in the skin called the ________, from which the hair grows. 8. small brown spots usually found on the face and arms. ____________ are extremely common and are not a health threat. 10. At the bottom of the follicle is the ________________, where hair growth actually takes place. 12. The bottom layer of our skin 15. single most common skin condition in teens. 16. The upper layer of our skin 17. our largest organ 18. type of ringworm, is a fungal infection that forms a scaly, ring-like lesion in the scalp. 20. hard protein called keratin in a process called _____________ 22. _________ glands develop at puberty and are concentrated in the armpits and pubic region. 23. Muscles in the skin called _______________ contract to make the hairs on our skin stand up straight when we are cold or frightened 25. infection of the feet is caused by the same types of fungi that cause ringworm. 27. tiny skin infections caused by viruses of the human papilloma virus (HPV) family. 29. ___________ dermatitis is a warm, moist environment, such as that found in the folds of the skin in the diaper area of infants, is perfect for growth of the yeast ___________. 30. _________ dermatitis is an oily rash on the scalp, face, chest, and back, is related to an overproduction of sebum from the sebaceous glands. 34. bacterial infection that results in a honey-colored, crusty rash, often on the face near the mouth and nose. 35. infection of the skin and subcutaneous tissue that typically occurs when bacteria are introduced through a puncture, bite, or other break in the skin. 36. soft thickened bulb at the base of the hair embedded in the skin. 37. which surrounds the medulla and is the main part of the hair (Layer of hair) 39. _________ glands are found everywhere in our bodies, although they are mostly in the forehead, palms, and soles of the feet. 40. The skin below the nail is called the ____________ 41. produce an oil called ________ that lubricates the skin and hair. 42. whitish crescent-shaped area at the base of the nail is called the ________

Down 1. growths on the skin that are usually brown or black. 2. produce keratin, a type of protein that is a basic component of hair and nails. 4. Parasites can feed on or burrow into the skin, often resulting in an itchy rash. 5. area of hair loss. 6. form of skin cancer 9. produce melanin, the pigment that gives skin its color. 11. elastic fibers in the dermis 13. any inflammation that might be associated with swelling, itching, and redness of the skin. 14. Below the epidermis is the next layer of our skin 19. __________ cells help protect the body against infection. 21. small flap of tissue that hangs off the skin by a connecting stalk. 24. The root ends in the _____________ 26. strong and hard to stretch fibers in the dermis 28. at the center, which is soft (Layer of hair) 31. spot on the skin that is darker (usually brown) than the surrounding skin 32. hard outer layer that protects the shaft .(Layer of hair) 33. fungus infection that can affect the skin, nails, or scalp. 35. __________ dermatitis occurs when the skin comes into contact with an irritating substance or a substance that a person is allergic to. 38. It's a common, hereditary dermatitis that causes an itchy rash primarily on the face, trunk, arms, and legs.