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ch3 only quiz vocab
| Term | Definition |
|---|---|
| membranes | thin sheets or layers of pliable tissue |
| epithelial membranes | thin sheets of tissue lining the internal and external surfaces of the body |
| mucous membranes | thin sheets of tissue lining the body cavities that open to the outside world |
| serous membranes | thin sheets of tissues that line body cavities closed to the outside world |
| pleura | the membrane that encases the lungs |
| pericardium | the membrane that surrounds the heart |
| peritoneum | the membrane that lines the abdominal cavity |
| serous fluid | a thin, clear liquid that serves as a lubricant between parietal and visceral membranes |
| cutaneous membranes | another name for skin |
| synovial membrane | the lining of the synovial joint cavity that produces synovial fluid |
| synovial fluid | a clear liquid secreted by synovial membranes that provides cushioning for and reduces friction in synovial joints |
| integumentary system | enveloping organ of the body that includes the epidermis, dermis, sudoriferous and sebaceous glands, nails, and hair |
| keratin | a tough protein found in the skin, hair, and nails |
| melanocytes | specialized cells in the skin that produce melanin |
| melanin | a pigment that protects the body against harmful effects of ultraviolet ray damage from the sun |
| epidermis | the outer layer of skin |
| dermis | layer of skin between the epidermis and hypodermis; includes nerve endings, glands, and hair follicles |
| hypodermis | the layer of skin beneath the dermis, which serves as a storage repository for fat |
| stratum corneum | the outer layer of the epidermis |
| stratum lucidum | the clear layer of thick skin found only on the palms of the hands, fingers, soles of feet, and toes |
| stratum granulosum | a layer of somewhat flattened cells lying just superficial to the stratum spinosum and inferior to the stratum lucidum |
| stratum spinosum | the layers of cells in the epidermis superior to the stratum basale and inferior to the stratum granulosum |
| stratum basale | the deepest layer of the epidermis |
| keratinocytes | cells within the epidermis that produce keratin |
| epidermal dendritic cells | skin cells that initiate an immune system response to the presence of foreign bacteria or viruses |
| merkel cells | touch receptors in the skin |
| papillary layer | the outer layer of the dermis |
| reticular layer | the layer of skin superficial to the papillary layer |
| surdoriferous glands | sweat glands that are distributed in the dermis over the entire body |
| sebaceous glands | glands located all over the body that produce sebum |
| sebum | an oily substance that helps keep the skin and hair soft |
Created by:
espindan1