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Unit III
Integumentary System
| Question | Answer |
|---|---|
| Apocrine glands | the less numerous type of sweat gland, found in axillary and genital regions |
| Arrector pili | tiny, smooth muscle attached to hair follicles |
| Carotene | a yellow to orange pigment |
| Ceruminous glands | a modified sudiferous glands producing a waxy secretion and situated in the external auditory canal |
| Dermal papillae | fingerlike processes invading the epidermis from the dermis |
| Dermis | the deep, vascular layer of the skin, composed of dense irregular connective tissue |
| Exocrine Glands | release their secretions to the skin surface via ducts |
| Eccrine glands | the most abundant type of sweat gland |
| Epidermis | the outermost layer of the skin |
| First-degree burn | burn where only the epidermis is demaged |
| Hypodermis | the innermost and thickest layer of the skin made of adipose tissue |
| Keratin | a tough, water insoluble, protein found in tissues such as hair, nails, and the epidermis |
| Keratinocytes | the most common type of skin cells, they make keratin |
| Langerhans cells | dendritic cells that play a key role in the immune reactions in the body |
| Meissner’s corpuscles | are touch receptors located near the surface of the skin, sense light touch |
| Melanin | a pigment that ranges in color from yellow to brown to black |
| Melanocytes | specialized cells that produce a dark pigment called melanin |
| Merkel cells | sensory receptors for light tough responses |
| Pacinian corpuscles | sensory receptors found in deep layers of the skin that sense deep pressure and touch |
| Papillary Layer | is the upper dermal region of the skin |
| Reticular layer | the deepest skin layer, contains blood vessels, sweat and oil glands, and deep pressure receptors |
| Sebaceous glands | Oil glands found all over the skin except on hands and soles |
| Sebum | a mixture of oily substances and fragmental cells |
| Second-degree burn | burn that involves injury to the epidermis and upper region of the dermis |
| Skin appendages | arise from the epidermis and plays a unique role in maintaining body homeostasis |
| Stratum basale | the deepest layer of the epidermis, cells constantly undergoing cell division |
| Stratum corneum | the uppermost layer of the epidermis, consisting of shinglelike dead cell remnants completely filled with keratin |
| Stratum granulosum | the third layer of the epidermis where cells stop dividing and begin making keratin |
| Stratum lucidum | a think transparent layer of cells, present on thick skin only |
| Stratum spinosum | an epidermal layer consisting of keratinocytes |
| Sudoriferous gland | aka sweat glands |
| Third-degree burn | burn which destroys the entire thickness of the skin |
Created by:
weberd
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