Integumentary System

3. Covers and protects the dorsal surfaces of the distal bones of the fingers and toes
5. Connective tissue layer beneath the epidermis
6. Secrete sebum (oil) into the hair follicles where the hair shafts pass through the dermis. Prevents drying of skin.
8. structure with outer and inner root sheaths extending from the epidermal surface into the dermis and from which new hair develops.
10. A pigment that gives the skin its color
12. the less numerous type of sweat gland; produces a secretion containing water, salts, proteins, and fatty acids.
13. a primary tissure; form and function vary extensively. Functions include support, storage, and protection
16. a primary tissue that covers the body surface, lines its internal cavities, and forms glands
19. The crescent-shaped area at the base of the human fingernail.
20. dense irregular connective tissues making up approx. 80% of dermis

1. Hardened keratin plate covering the nail bed
2. Anchors the epidermis to the dermis
4. Components: skin, hair, fingernails, toenails, sweat glands, oil gland
7. A fiber protein that is the principal component of hair, skin, and nails
9. Absence of pigment in the skin, hair, and eyes
11. Portion of the living skin that supports the nail plate as it grows toward the free edge.
14. Outer layer of skin
15. Fatty or oily secretion produced by the sebaceous glands
17. Tiny, smooth muscles attached to hair follicles, contraction causes the hair to stand upright
18. A thickened portion of the skin