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Exam 2 Study Guide

by: Victoria Notetaker

Exam 2 Study Guide BIOL 2311

Victoria Notetaker

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Exam 2: Chapter 5-The Integumentary System
Anatomy and Physiology II
Dr. Al Dahwi
Study Guide
BIOL 2311
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This 5 page Study Guide was uploaded by Victoria Notetaker on Sunday February 28, 2016. The Study Guide belongs to BIOL 2311 at University of Texas at El Paso taught by Dr. Al Dahwi in Spring 2016. Since its upload, it has received 142 views. For similar materials see Anatomy and Physiology II in Biology at University of Texas at El Paso.


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Date Created: 02/28/16
Exam Date: 03-03-2016 EXAM 2 1. CHAPTER 5: INTEGUMENTARY SYSTEM (PG 150-164) ALL Sections EXCEPT: Types and Growth of Hair (pg. 159), Hair Thinning and Baldness (pg. 160), and Homeostatic Imbalances (Section 5.9 pgs. 164-169) A. Section 5.1 The skin consists of two layers: the epidermis and the dermis (pg. 150) i. Key Terms: 1. Integumentary System 2. Epidermis 3. Dermis 4. Hypodermis 5. Superficial fascia B. Section 5.2 The epidermis is a keratinized stratified squamous epithelium (pg. 152) i. Key Terms: 1. Dermis 2. Keratinocytes 3. Keratin 4. Callus 5. Melanocytes 6. Melanin 7. Melanosomes 8. Dendritic cells 9. Langerhans cells 10. Tactile (Merkel) cells 11. Tactile (Merkel) disc 12. Thick skin 13. Stratum basale 14. Stratum germinativum 15. Stratum spinosum 16. Prickle cells 17. Stratum granulosum 18. Keratinization 19. Keratohyaline granules 20. Lamellar granules 21. Stratum lucidum 22. Tonofilaments 23. Stratum corneum 24. Cornified cells ii. Know the difference between thick and thin skin iii. Know the layer order of the skin iv. Know the functions of each cell type v. How does the skin prevent water loss? vi. Which cells work with multiple systems and how? C. Section 5.3 The dermis consists of papillary and reticular layers (pg. 154) i. Key Terms: 1. Dermis 2. Papillary layer 3. Dermal papillae 4. Meissner’s corpuscles 5. Dermal ridges 6. Friction ridges 7. Lamellar corpuscles 8. Fingerprints 9. Reticular layer 10. Cutaneous plexus 11. Cleavage (tension) lines 12. Flexure lines ii. What is the difference in how the dermal ridges and cleavage lines run? D. Section 5.4 Melanin, carotene, and hemoglobin determine skin color (pg. 156) i. Key Terms: 1. Melanin 2. Tyrosinase 3. Freckles 4. Pigmented nevi 5. Carotene 6. Hemoglobin ii. How can carotene be acquired? 2 iii. What is the range in color of melanin? iv. How does melanin protect from UV rays? v. Describe the tanning process. E. Section 5.5 Hair consists of dead, keratinized cells i. Key Terms: 1. Hairs (pili) 2. Hard keratin 3. Soft keratin 4. Shaft 5. Root 6. Medulla 7. Cortex 8. Cuticle 9. Pheomelanin 10. Hair follicle 11. Hair bulb 12. Hair follicle receptor 13. Root hair plexus 14. Papilla of hair follicle 15. Peripheral connective tissue sheath 16. Glassy membrane 17. Epithelial root sheath 18. Hair matrix 19. Hair bulge 20. Arrector pili ii. How does the shaft shape in cross section effect the hair type. iii. Know the location and characteristics of the different layers F. Section 5.6 Nails are scale-like modifications of the epidermis (pg. 160) i. Key Terms: 1. Nail 2. Free edge 3. Nail plate/body 4. Root 5. Nail bed 6. Nail matrix 7. Lunule 8. Nail folds 9. Cuticle 3 10. Hyponychium ii. Know the location and functions. iii. When defining the nail sections refer to the lecture definitions. G. Section 5.7 Sweat glands help control body temperature, and sebaceous glands secrete sebum (pg. 161) i. Key Terms: 1. Sudoriferous glands 2. Eccrine sweat glands 3. Pore 4. Sweat 5. Dermcidin 6. Apocrine sweat glands 7. Androgens 8. Ceruminous glands 9. Cerumen 10. Mammary glands 11. Sebaceous glands 12. Sebum 13. Holocrine glands 14. Bactericidal ii. Know all the functions of sweat iii. Which system controls sweating? iv. How is sebum released into the hair follicle? v. Where are the different sweat glands located? vi. How does sweat get its smell? H. Section 5.8 First and foremost, the skin is a barrier (pg. 162) i. Key Terms: 1. Acid mantle 2. Defensins 3. Cathelicidins 4. Bacteriostatic 5. Lipid-soluble substances 6. Oleoresins 7. Organic solvents 8. Salts of heavy metals 9. Penetration enhancers 10. Antigens 11. Insensible perspiration 4 12. Sensible perspiration 13. Cutaneous sensory receptors 14. Exteroceptors ii. What is the pH of sweat? iii. Be able to explain how skin is a barrier in each category. 2. FIGURES TO REFER TO: A. Figure 5.1 Skin Structure (pg. 151) B. Figure 5.2 Epidermal cells and layers of the epidermis (pg. 152) C. Figure 5.4 Dermal modifications result in characteristic skin markings (pg. 155) D. Figure 5.6 Skin appendages: Structure of a hair and hair follicle (pg. 158) E. Figure 5.7 Skin appendages: Structure of a nail (pg. 160) F. Figure 5.8 Skin appendages: Cutaneous glands (pg. 161) 3. BE ABLE TO EXPLAIN THE EACH DIAGRAM PROFESSOR AL- DAWHI IS GOING TO SEND BY EMAIL. 5


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