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26 Cards in this Set
- Front
- Back
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What makes up the integument system?
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the skin and its accessory organs
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______ are body structures that are composed of two or more tissues
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organs
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what is the largest organ in the body?
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skin
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who much does your skin weigh?
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8-9 pounds
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skin cell are renewed by the _____ every day
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billions
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The ______ is replaced every two weeks (reason why a suntan only lasts so long)
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epidermis
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what are the 4 types of membranes of the skin?
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1. serous
2. mucous 3. synovial 4. cutaneous |
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______ membrane line body cavities that lack openings to the outside.
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serous
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what is the membranes made up of? what do they secrete?
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epithelium and loose connective tissues and secrete serous fluid that acts as a lubricant.
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______ membrane line the cavities and opening that lead to the outside of the body, including oral and nasal cavities, and openings of the digestive, reproductive, respiratory, and urinary systems.
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mucous
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what does the mucous membranes consist of? what does it secrete?
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consists of epithelium and connective tissue with specialized cells that secrete mucus.
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_____ membranes line the joint cavities
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synovial
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what does the synovial membranes consist of? what do they secrete?
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consists of ONLY connective tissue and secrete lubrication synovial fluid.
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_____ membrane consists of the skin
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cutaneous
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through what mechanisms does the skin (largest organ) maintain homeostasis?
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1. temperature regulation
2. protection of underlying tissues 3. retardation of water loss 4. housing sensory receptors (pain) 5. synthesizing certain chemicals 6. excreting wastes |
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What organ is the first line of defense for the body?
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the skin
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is your skin dead or alive (outside)
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dead
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what are the three layers of the skin?
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epidermis, dermis, and subcutaneous layer (hypodermis)
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what does the epidermis consist of?
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the hair shaft, sweat gland pore, stratum corneum, stratum basal, basement membrane
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the epidermis is made up of 1. ______ ______ epithelium and lacks 2. _____ vessels
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1. stratified squamous
2. blood |
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which layer, of the reproducing cells, lies at the base of the epidermis, is well-nourished by dermal blood vessels
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stratum basale
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cells are pushed 1. _____ as new cells formed, and become 2. _______ as they die.
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1. outward
2. keratinized |
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what are the 6 layers of the epidermis?
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1. stratum corneum
2. stratum lucidum 3. stratum garnuolusm 4. stratum spinosum 5. stratum basale 6. basement membrane |
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____ ____ layer of the epidermis is where injury occurs and helps protect skim from invasion
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stratum corneum
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The epidermis is important because it protects from what?
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water loss, mechanical injury, chemicals, and microorganisms
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1. ______ lie deep in the epidermis and underlying dermis, produce a pigment called 2. ____ that protects deeper cells from the sun's ultraviolet rays. This is located in the3. _____ layer.
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1. melanocytes
2. melanin 3. spinosum |
