Help
Options
Question
Body temperature regulation is accomplished by:
click to flip
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't know
Question
Metabolic function of the Integumentary System:
Remaining cards (83)
Know
retry
shuffle
restart
0:01
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
GE 258 CH 5
| Question | Answer |
|---|---|
| Body temperature regulation is accomplished by: | dilation (cooling) and contriction (warming) of dermal vessels |
| Metabolic function of the Integumentary System: | Synthesis of vitamin D in dermal blood vessels |
| Excretion of the Integumentary system involves: | limited amounts of nitrogenous waste are eliminated through sweat |
| Three major region of the skin | epidermis, dermis, hypodermis |
| outermost superficial region of the skin | epidermis |
| middle region of the skin | dermis |
| deepest region (superficial fascia) of the skin | hypodermis |
| region of the skin composed of keratinized stratified squamous epithelium, consisting of four distinct cells types and four or five layers | epidermis |
| cell types of the epidermis skin include | keratinocytes, melanocytes, Merkel cells, and Langerhans' cell |
| cell type of the epidermis that produce the fibrous protein keratin | keratinocytes |
| cell type of the epidermis that produce the brown pigment melanin | melanocyte |
| cell type of the epidermis that is the epidermal macrophages that help activate the immune system | Langerhan' cells |
| cell type of the epidermis that funtion as touch receptors in association with sensory nerve endings | Merkel cells |
| Layers of the epidermis include: superficial to deep | stratum corneum, stratum lucidum, stratum granulosum, stratus spinosum, stratum basale |
| layer of the epidermis that is the deepest epidermal layer firmly attached to the dermis | stratum basale (basal layer) |
| layer of the epidermis that consist of a single row of the youngest keratinocytes | stratum basale (basal layer) |
| layer of the epidermis in which cells undergo rapid division | stratum basale (basal layer) |
| layer of the epidermis where cells contain a web-like system of intermediate filaments attached to desmosomes | stratum spinosum (prickly layer) |
| layer of the epidermis that contain an abundant layer of melanin granules and Langerhans' cells | stratum spinosum (prickly layer) |
| layer of the epidermis that is thin; three to five cells layers in which drastic changes in keratinocyte appearance occurs | stratum granulosum (granular layer) |
| layer of the epidermis that accumulate keratohyaline and lamellated granules in the cells | startum granulosum (granular layer) |
| layer of the epidermis that is thin, transparent band superficial to the stratum granulosum | stratum lucidum (clear layer) |
| layer of the epidermis that consist of few rows of flat, dead keratinocytes | startum lucidum (clear layer) |
| layer of the epidermis that is present only in thick skin | startum lucidum (clear layer) |
| layer of the epidermis that is the outermost layer of keratinized cells | stratum corneum (horny layer) |
| layer of the epidermis that accounts for three quarters of the epidermal thickness | stratum corneum (horny layer) |
| layer of the epidermis that function in waterpoofing and protecting | stratum corneum (horny layer) |
| layer of the skin that is the second major skin region containing strong, flexible connective tissue | dermis |
| layer of the skin in which cell types include fibroblasts, macrophages, and occasionally mast cells and white blood cells | dermis |
| layer of the skin that composes of two layers-papillary and reticular | dermis |
| the two layers of the dermis is | papillary and reticular |
| layer of the dermis that contains areolar connective tissue with collagen and elastic fibers | papillary layer |
| layer of the dermis that its superior surface conatins peg-like projections called dermal papillae | papillary layer |
| layer of the dermis that has dermal papillae containing capillary loops, Meissner's corpuscles, and free nerve endings | papillary layer |
| layer of the dermis that has meissner's corpuscles | papillary layer |
| mechanoreceptor specialized for light touch | meissner's corpuscles |
| layer of the dermis that accounts for approx. 80% of the thickness of the skin | reticular layer |
| layer of the dermis that contain collagen fibers adding strength and resiliency to the skin | reticular layer |
| results from extreme stretching of the skin | stretch marks |
| silvery white scars that result from dermal tearing | striae |
| layer of the skin that is the subcutaneous layer deep to the skin | hypodermis |
| layer of the skin that compose of adipose and areolar connective tissue | hypodermis |
| three pigments contribute to skin color | melanin, carotene, hemoglobin |
| skin pigment that is yellow to reddis-brown to black pigment, responsible for dark skin colors | melanin |
| result from local accumulation of _______ producing freckles and pigmented moles | melanin |
| skin pigment that is yellow to orange pigment, most obvious in palms and soles of the feet | carotene |
| reddish pigment responsible for the pinkish hue of the skin | hemoglobin |
| different types of _____ prevent overheating of the body | sweat glands (sudoriferous) |
| secrete cerumen and milk | sweat glands (sudoriferous) |
| gland found in palms, soles of the feet and forehead | eccrine sweat gland |
| most numerous type of sweat gland | eccrine sweat gland |
| gland found in axillary and anogenital areas | apocrine sweat gland |
| modified apocrine glands in external ear canal that secrete cerument | ceruminous gland |
| specialized sweat glands that secrete milk | mammary gland |
| simple alveolar gland found all over the body | sebaceous gland |
| gland that soften skin when stimulated by hormones | sebaceous gland |
| gland that secrete an oily secretion called sebum | sebaceous gland |
| filamentous stands of dead keratinized cells produced by hair follicles | hair |
| contain harden keratin which is tougher and more durable than soft keratin of the skin | hair |
| made up of the shaft projecting from the skin, and the root embedded in the skin | hair |
| consist of a core, called the medulla, a cortex and an outermost cuticle | hair |
| pigmented by melanocytes at the base | hair |
| type of hair that is pale, fine body hair found in children and the adult female | vellus |
| type of hair that is coarse, long hair of eyebrows, scalp, axillary, and pubic region | terminal |
| hair thinning in both sexes | alopecia |
| scale-like midification of the epidermis on the distal, dorsal surface of fingers and toes | nails |
| a crucial risk factor for nonmelanoma skin cancers is the disabling of the _____ gene | p53 |
| Three major types of skin cancer are | basal cell carcinoma, squamous cell carcinoma, melanoma |
| least malignant and most common skin cancer | basal cell carcinoma |
| stratum basale cells proliferate and invade the dermis and hypodermis | basal cell carcinoma |
| slow growing and do not often metastasize | basal cell carcinoma |
| arises from keratinocytes of startum spinosum | squamous cells carcinoma |
| arise most often on scalp, ears, and lower lip | squamous cells carcinoma |
| grows rapidly and metasitasizes if no removed | squamous cell carcinoma |
| highly metastatic type of cancer | melanoma |
| _____ degree of burn in which only the epidermis is damaged | First |
| _____ degree of burn in which symptoms include localized redness, swelling, and pain | First |
| _____ degree of burn in which epidermis and upper regions of dermis are damaged | Second |
| _____ degree of burn in which symptoms include mimic of first degree burns, but blisters appear | Second |
| _____ degree of burn in which entire thickness of the skin is damaged | Third |
| _____ degree of burn in which symptoms include burned area appears gray-white, cherry red, or black, there is no initial edema or pain | Third |
| Burn is considered critical if over 25% of body has | second-degree burn |
| Burn is considered critical if over 10% of body has | third-degree burn |
| primary cause of death in burn victims are | skin infection |
Created by:
evang
Popular Anatomy sets