Trifecta Anatomy Homework 1 (Ch1,2,4,5)

Chapter 5 The Integumentary System
Using the key choice, choose all responses that apply to the following descriptions.
A. stratum basale D. stratum lucidum G. reticular layer
B. stratum corneum E. stratum spinosum H. epidermis as a whole
C. stratum granulosum F. papillary layer I. dermis as a whole
1. translucent cells in thick skin containg keratin fibrils ___
2. dead cells ___
3. dermal layer responsible for fingerprints ___
4. vascular region ___
5. major skin area that produces derivatives (nails and hair) ___
6. epidermal region exhibiting the most rapid cell division ___
7. scale-like dead cells, full of keratin, that constantly slough off ___
8. mitotic cells filled with intermediate filaments ___
9. has abundant elastic and collagenic fibers ___
10. location of melanocytes and Merkel cells ___
11. area where weblike prekeratin filaments first appear ___
12. region of areolar connective tissue ___
Match the key choice with the appropriate descriptions.
A. arrector pili D. hair follicle G. apocrine sweat gland
B. cutaneous receptors E. nail H. eccrine sweat gland
C. hair F. sebaceous glands
13. produces an accumulation of oily material that is known as a blackhead ___
14. tiny muscles, attached to hair follicles, that pull the hair upright during fright ___
15. perspiration glands with a role in temperature control ___
16. sheath formed of both epithelial and connective tissues ___
17. less numerous type of perspiration-producing gland __
18. found everywhere on the body except the palms of hands and soles of feet ___
19. primarily dead or keratinized cells
20. specialized nerve endings that respond to temperature, touch, etc.
21. its secretion is a lubricant for hair and skin ___
22. “sports” a lunula and a cuticle ___
23. found mainly in the pubic and axillary regions ___
24. Why is the hypodermis not considered part of true skin?