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| type of gland whose secretions contain parts of secretory cells |
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| smooth muscle in skin associated with a hair follicle |
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| layer of extracellular matrix that anchors epithelial tissue to underlying connective tissue |
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| protein in connective tissue and in bone matrix |
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| thick layer of the skin beneath the epidermis |
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| sweat gland that maintains body temperature |
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| outer epithelial layer of the skin |
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| tubelike depression in the skin in which a hair develops |
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| the skin and accessory organs |
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| protein in epidermis, hair and nails |
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| process by which cells from fibrils of keratin and harden |
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| dark pigment normally found in skin and hair |
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| skin gland that secretes sebum |
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| Sweat (sudoriferous) gland |
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Definition
| exocrine gland in skin that secretes a mixture of water, salt, urea and other bodily wastes |
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| The epidermis is composed of... |
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Definition
| stratified squamous epithelial tissues |
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| The outermost layer of the epidermis is composed of ______; the bottom layer is composed of ________ |
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| The deepest layer of the epidermis is the ________ |
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| The stratum basale contains______. These cells are nourished by_________. |
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| cells undergoing mitosis; dermal blood vessels |
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| _____cells undergo keratinization as they mature and are pushed______the surface. This outermost layer is called the ______ |
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| epidermal; stratum corneum |
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| During keratinization they _____ develops strands of a tough, fibrous, waterproof protein called _____and the cells die. This takes about two weeks. |
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| _______ produce the skin pigment melanin. Melanin protects underlying cells from the effects of ultraviolet light. |
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| Oxygen _____blood in _____ vessels has a darker color and gives the skin a bluish color known as _____. |
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| depleted; dermal; cyanosis |
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Definition
| thick inner layer of the skin, composed mainly of fibrous connective tissue, living throughout its thickness, blood vessels supply nutrients to the skin cells and aids in regulating the body temperature |
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| Constant pressure against the bed causes __________. |
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| Subcutaneous layer is also called the _________. It is composed of _____and _____tissue and lies beneah the dermis |
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| hypodermis; connective; adipose |
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| Adipose tissue helps ___________ and _________energy. |
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Definition
| conserve body heat; store |
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| Adipose tissue helps ___________ and _________energy. |
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| conserve body heat; store |
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| Functions of the skin include.... |
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Definition
| protection, body temp regulation, water loss reduction, houses sensory receptors, synthesizes chemicals (vitamin d), and excretion of wastes |
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| Hair is composed of dead _______cells |
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| The visible part of the hair is called the ________ |
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| A bundle of smooth muscle cells attached to each hair follicle contracts to straighten and raise the hair follicle, resulting in piloerection (goosebumps). Nerve impulses are stimulated when a person is cold or emotionally upset. |
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| Sebaceous glands secrete_______ which keeps the skin and hair soft, pliable, and waterproof. It is composed of fatty material and cellular debris. Sebaceous glands are bsent from the ______and ________ |
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Definition
| sebum; palms of the hands; soles of the feet |
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| Nails are produced by _____ that undergo ______. The ____ of the nails is harder than that produced by epidermal cells of the skin. |
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Definition
| epidermal cells; keratinization; keratin |
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Definition
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| Two types of sweat glands |
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Definition
| eccrine; apocrine (each consist of a coiled tube) |
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| Eccrine glands respond to an _______ body temp,__________, or ________. When the body temp rises the ____ ___ ____ dilate and ______ glands secrete sweat. If temp drops the dermal blood vessels ____ and sweat glands become inactive. |
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Definition
| environmental heat; physical exercise; dermal blood vessels; sudoriferous; constrict |
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| When heat is lost excessively, the _______ muscles are stimulated to _______ involuntarily. Shivering increases heat production. |
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| When heat is lost excessively, the _______ muscles are stimulated to _______ involuntarily. Shivering increases heat production. |
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| Apocrine sweat glands respond to _____. These glands are located in the _____ and _____. |
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| emotion stress; groin; armpits |
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| Inflammation is _____ of blood vessels in affected tissues. |
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