Term
| What is the largest organ of the body? |
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Definition
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Term
| What are the accessory organs of the integumentary system? |
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Definition
| Hair, nails, oil and sweat glands |
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Term
| What are the two layers of the skin? |
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Definition
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Term
| The hypodermis ____ part of the skin |
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Definition
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Term
| What are the functions of the skin (5)? |
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Definition
| Thermoregulation, protection, excretion and absorption, synthesis of vitamin D, and cutaneous sensation |
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Term
| What is the most important function of the skin? |
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Definition
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Term
| What are the four types of cells in the epidermis? |
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Definition
| Keratinocytes, melanocytes, langerhans cells, and Merkel cells |
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Term
| What type of epidermis is also known as "hairless skin"? |
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Definition
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Term
| How many layers do thin and thick skin have? |
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Definition
| four and five respectively |
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Term
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Definition
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Term
| What are the 5 layers of the epidermis? |
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Definition
| Stratum basale, stratum spinosum, stratum granulosum, stratum lucidum (thick skin only), and the stratum corneum |
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Term
| What layer of the skin is responsible for making new skin cells? |
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Definition
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Term
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Definition
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Term
| What is the "dying layer" of the epidermis? |
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Definition
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Term
| What epidermal cell type looks like it has "tentacles"? |
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Definition
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Term
| What epidermal cell is associated with nerve endings? |
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Definition
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Term
| What is the largest layer of the epidermis? |
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Definition
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Term
| How often is the epidermis replaced? |
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Definition
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Term
| What are the two divisions of the dermis? |
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Definition
| Papillary dermis and the reticular dermis |
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Term
| What is the purpose of the papillae pattern in the dermis? |
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Definition
| Increased vascularity and increase connective strength |
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Term
| What are the three pigments responsible for the colors of our skin and hair? |
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Definition
| Melanin, Carotene, and Hemoglobin |
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Term
True or False:
People with darker skin tones have more melanocytes than those with fair skin |
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Definition
| FALSE; everyone has the same number of melanocytes but those cells produce different amounts of melanin |
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Term
| _____ is the inherited inability to produce any melanin |
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Definition
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Term
| What are the three types of cutaneous sensation? |
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Definition
| Light touch, pressure/vibration, and pain |
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Term
| What are the three componenets involved in light touch sensation? |
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Definition
| Meisner's corpuscles, Merkel cells, and hair |
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Term
| What are the two layers of the hair follicle? |
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Definition
| External root sheath and internal root sheath |
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Term
| Sebaceous glands are found everywhere except the _____ and _____ |
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Definition
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Term
| What is the name of the substance secreted from sebaceous glands? |
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Definition
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Term
| What are the two types of sweat glands? |
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Definition
| Eccrine (true "sweat") and apocrine |
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