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skin
| Question | Answer |
|---|---|
| Skin protects the body from disease and external | injury. |
| Skin prevents | dehydration. |
| desiccation- | (the act of drying up) |
| Skin Regulates body | temperature. |
| Vasoconstriction of the capillary vessels assists | warming of the body. |
| vasodilation of the capillary vessels assists in | cooling. |
| Skin is the Receptor of | stimuli. |
| receptors specialized for | touch, pressure, temperature, and pain. |
| Skin Regulates body | fluids. |
| Skin has Selective | absorption. |
| epidermis | Layer of tissue with no nerve supply or blood. |
| papillary | Layer of the dermis; contains loose connective tissue. |
| reticular | Lower layer of skin; contains thick, collagen fibers. |
| dermis | Also called the corium, it lies directly beneath the epidermis. Hair follicles, oil glands (sebaceous), and sweat glands are located in dermis. |
| subcutaneous | Connective tissue that contains fat (adipose tissue) and connects organs to underlying skin. Also called the hypodermis. |
| sebaceous | Oil-secreting gland of the skin. Produces an oily substance called sebum. |
| arrector pili | A type of smooth muscle that moves hairs. |
| sudoriferous | Also called sweat glands, these glands open as pores on the skin’s surface. Found on palms, soles, armpits (axillae), and forehead. |
| pacinian corpuscle | Found in subcutaneous tissue, these sense touch and vibratory pressure. |
| subcuticular means underneath the | epidermis. Used often when closing the skin following an operative procedure. |
| the epidermis is composed of stratified squamous | epithelium, which is between 20 and 30 cell layers thick. |
| keratin toughens and | waterproofs the skin. |
| The dermis consists of collagenous, elastic, and | reticular fibers. |
| An eponychium covers the area above the root of the | nail. (Lay people call this a cuticle.) |
| The cuticle. | eponychium |
| The protein which toughens and waterproofs the skin. | keratin |
| The papillary and reticular layers. | dermis |
| An oil gland. | sebaceous |
| Underneath the epidermis. | subcuticular |
| The process of drying up. | desiccation |
| The uppermost layer of the dermis. | papillary |
| The outermost layer of the skin is composed of this type of cell. | stratified squamous epithelium |
| The lowermost layer of skin. | subcutaneous layer |
| The muscle responsible for goose bumps. | arrector pili |
| This layer, along with the papillary layer, makes up the dermis. | reticular |
| Sweat gland. | sudoriferous gland |
| The nerve ending responsible for recognizing vibration and pressure. | pacinian corpuscle |
| The outermost layer of skin. | epidermis |
| abrasion | The wearing away of the epidermis by a scraping movement. |
| blister | A thin-walled sac containing serous (clear) fluid. |
| bleb | A blister-like structure filled with serous fluid. |
| bulla | A blister on the skin, greater than 5 mm in diameter, with thin walls filled with fluid. |
| Plural of bulla is | bullae. |
| callus | A localized buildup of layers of the epidermis caused by increased pressure or friction. |
| A corn is a type of callus which is localized to the | foot (especially around the toes). |
| cicatrix | A scar. The new tissue which forms during healing of a wound. |
| comedo | A noninflammatory lesion of acne, consisting of a plug of keratin within a dilated hair follicle. |
| Plural of comedo is | comedones. |
| contusion | A bruise, specifically an injury to the skin caused by blunt trauma that does not break the skin. |
| A localized buildup of layers of skin, caused by pressure or friction. | callus |
| A plug of keratin within a dilated hair follicle. | comedo |
| An injury caused by blunt trauma. | contusion |
| A thin-walled sac containing serous fluid, greater than 5 mm in diameter. | bulla |
| A scar. | cicatrix |
| ABNORMALITIES | |
| ecchymosis | Hemorrhage under the epidermis that causes red or purple discoloration; a bruise. |
| eschar | The crust that forms over a burn or gangrene. |
| excoriation | A scratch; a linear or hollowed-out crusted area caused by scratching, rubbing, or picking. |
| furuncle Also called a boil, this is a painful localized | bacterial infection that originates in a hair follicle or gland in the subcutaneous tissue. |
| lichenification | Localized thickening and coarsening of the skin due to chronic irritation. This is usually caused by scratching an area for a prolonged period of time. |
| macule | A flat discolored spot less than 1 cm in diameter. May be various shapes. The skin is discolored but is the same as surrounding skin. Freckles, flat moles, and tattoos are examples of macules. If the area is larger than 1 cm it is called a patch. |
| Plural of nevus is | nevi. |
| papule | A solid elevated lesion of skin less than 1 cm in diameter. This is a superficial lesion which may or may not be of different texture and color than the surrounding skin. |
| If the raised area is larger than 1 cm, more firm, and deeper it is called a | nodule. |
| If it is quite large, elevated, and firm it is called a | tumor. |
| nevus Any congenital lesion of the skin or, in other words, a | birthmark. |
| A bruise. | ecchymosis |
| An elevated lesion less than 1 cm in diameter. | papule |
| The crust which forms over a burn. | eschar |
| A boil. | furuncle |
| A birthmark. | nevus |
| Permanent dilatation of the blood vessels, visible through the skin. | telangiectasia |
| A hive. | wheal |
| Warts. | verrucae |
| Itching. | pruritus |
| A pinpoint, round spot caused by hemorrhage. | petechia |
Created by:
trinka
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