BIOL 2113 - Chapter 5: The Tissue Level of Organization Study Guide Topic Describe the epidermis Explanation Epidermis – and its layers. 1. 2. 3. 4. 5. Describe the dermis Dermis – and its layers. 1. 2. Describe the Hypodermis – hypodermis. Differentiate between Keratin – keratin and melanin. Melanin – Topic Describe the following Explanation 1. Albinism – (as they relate to skin color): 2. Vitiligo – 3. Jaundice – 4. Cyanosis – 5. Addison’s disease – Terms related to hair: 1. ____________________ - inward extension of the dermis and epidermis 2. ____________________ - projects from the scalp 3. ____________________ - part of the hair within the follicle 4. ____________________ - located in the deeper dermis surrounding the end of the hair root and the hair papilla 5. ____________________ - growth zone containing mitotically active basale cells 6. ____________________ - located within the hair bulb; contains blood vessels and nerves 7. ____________________ - central core of the hair 8. ____________________ - surrounds the core of the hair 9. ____________________ - hard, keratinized cells making the outer layer of the hair 10. ____________________ - determines hair color Functions of hair: Topic Explanation Define arrector pili Terms related to nails: 1. ____________________ - specialized structure of the epidermis found at the tips of fingers and toes 2. ____________________ - forms on the nail bed and protects the tips of fingers and toes 3. ____________________ - matrix of proliferating cells from the stratum basale where the nail body forms and the nail grows 4. ____________________ - overlaps the sides of the nail anchoring it to the nail body 5. ____________________ - aka eponychium; nail fold at the proximal end of the nail body 6. ____________________ - crescent-shaped region at the base of the nail 7. ____________________ - area furthest from the cuticle beneath the free edge of the nail Describe the Sudoriferous glands – sudoriferous glands and the 2 types 1. Eccrine – 2. Apocrine – Describe sebaceous glands. Describe ceruminous glands. Topic Describe the functions Explanation 1. Protection – of the Integumentary System. 2. Sensory function – 3. Thermoregulation – 4. Vitamin D synthesis – Differentiate between 1. Basal cell carcinoma – these 3 skin cancers: 2. Squamous cell carcinoma – 3. Malignant melanoma – a. Describe the ABCDE rule: Describe the “rule of nines” for measuring burns. Describe the following: First degree burns – Second degree burns – Topic Explanation Third degree burns – Fourth degree burns – Skin related disorders: Eczema – Acne – Scar – Keloid – Bedsore (decubitus ulcer) – Stretch mark – CallusCorn –