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Unit Exam 2 CCCUA
Integumentary System
Term | Definition |
---|---|
parietal peritoneum | the outer layer of serous membrane that lines the abdominal cavity |
visceral peritoneum | the innner layer of serous membrane that covers all the organs contained within the abdomen |
visceral pleura | the thin serous membrane that covers the lungs itself |
parietal pleura | the outer covering of the stick to the inner thoracic wall |
bursae | A closed sac lined with a synovial membrane filled with fluid found around most major joints of the body |
epithelial membrane | it is made up of epithelial tissue and an underlying layer of specialized connective tissue |
three types of epithelial membranes | 1. Cutaneous membrane 2. Serous membrane 3. Mucouse membrane |
cutaneous membrane | the skin |
mucous membrane | a mucus-secreting membrane lining all bodily passages that are open to the air, as parts of the digestive and respiratory tracts |
dermal papillae | small, nipple-like extensions of the dermis into the epidermis |
stratum corneum | outermost layer of the epidermis and protects underlying tissue from infection, dehydration |
subcutaneous layer | underlying layer of the skin consisting mainly of fat tissue, nerves, blood vessels and lymph channels to provide a cushion for delicate organs |
stratum germinativum | deepest layer of the skin. Its main function is to help the skin regenerate |
hair papilla | hair growth begins |
hair shaft | the nongrowing portion of a hair that protrudes from the skin, from the follicle |
hair follicle | part of the skin that grows hair by packing old cells together |
lanugo | the fine hair on the body of a fetus and newborn |
hair root | below the surface of the skin |
arrector pili | is a muscle found near the hair follicles of all mammals that makes the hair stand on end |
sebaceous glands | produce oil called sebum that moves up hair follicles to the surface of the skin, where the oil lubricates skin and hair |
eccrine glands | are sweat glands that are not connected to hair follicles |
endocrine glands | secrete their products, hormones, directly into the blood rather than through a duct |
apocrine glands | large sweat gland that produces fluid located in hairy regions of the body |
free nerve endings | brings information from the body's periphery toward the brain |
Pacinian corpuscle | capable of detecting touch, pressure and vibration |
Krause's end bulb | thermoreceptors in the body that help the body detect cold temperatures |
Meissner's corpuscle | capable of detecting light touch |
Rule of nines | body is divided into 11 areas of 9% each, 1% located around genitals |
first degree burn | only the surface layers of the epidermis involved |
second degree burn | involves the deep epidermal layers |
third degree burn (full thickness burn) | complete destruction of the epidermis and dermis |
keratin | making up the outer layer of human skin |
nail bed | The formative layer of cells at the base of the fingernail or toenail |
lunula | crescent shape area near root of nail |
cuticle | outermost layer of the skin |