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Integumentary SystemMedical-Surgical Nursing

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The dermis is comprised of _______ and supports the nerve and vascular network.
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Collagen bundles
The subcutaneous layer of the integumentary system is composed of _________.
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Fat and loose connective tissue
What are the two major types of epidermal cells?
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Keratinocytes (majority) and the melanocytes
Melanocytes are housed in the stratum ___________ of the epidermis, also known as the basal layer.
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Stratum Germinativum
What is the function of melanocytes?
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To give color to the skin and hair and protect the body from UV light
__________ are epidermal cells that are synthesized in the basal layer and move to the surface where they flatten and die to form the stratum corneum (outer layer).
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Keratinocytes
Keratin is a fibrous protein produced by keratinocytes that is vital for __________.
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The protective barrier function of the skin
Changes in _______ account for many skin problems, such as psoriasis.
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Cell cycle
What is the function of the dermis?
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It assists in regulation of body temperature and blood pressure
Which layer of the dermis is responsible for the formation of fingerprints?
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Papillary layer
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_________ forms the greatest part of the dermis and is responsible for the mechanical strength of the skin.
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Collagen
The primary cell type of the dermis is the __________.
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Fibroblast
Fibroblasts produce collagen and elastin fibers and are important for _________.
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Wound healing
Where are nerves, lymphatic vessels, hair follicles and sebaceous glands located in the integumentary system?
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In the dermis
T/F Subcutaneous tissue lies beneath the dermis and is part of the skin.
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False. It is not part of the skin, it lies directly beneath the dermis attaches skin to underlying bone and muscle
What are the functions of subcutaneous tissue?
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It attaches skin to underlying muscle and bone, provides insulation, stores lipids, regulates temperature and provides shock absorption
What structures are considered skin appendages?
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Hair, nails, sebaceous, eccrine and apocrine glands
The ________ layer develops skin appendages and the ________ layer provides nutrients, electrolytes, and fluids.
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Epidermis develops them, dermis feeds them
What places on the body grow no hair?
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The lips, palms of the hands and soles of the feet
Nails grow from the matrix, also called the _______.
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Lunula (crescent shaped area of the nail)
  
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