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A and P Ch 5
Integumentary System
| Question | Answer |
|---|---|
| which system consists of skin | the integumentary system |
| many different tissues make it an | organ |
| an organ is made up of | many different tissues |
| Functions of the integumentary system include | protection, storage, insulation and cooling |
| the outer layer of the skin is | the epidermis |
| the inner layer of the skin is | the dermis |
| stratum germinativum is which layer | inner most |
| What is the definition of germinate? | To sprout |
| Base or lowest part is what area | basal |
| ____ is to replace skin cells that slough off | mitosis |
| As cells get further from capillaries they do what? | Die |
| Touch receptors are what? | merkel cells |
| peptides synthesize by living keratinocytes and secreted during inflammation | defensins |
| outer most layer is | stratum corneum |
| epidermis is a barrier to | micro organisms |
| produce pigment protein myelin | melanoycytes |
| increased melanin protects from UV light by___ | absorption |
| ____and elastin make the dermis strong | collagen |
| uneven junction between dermis and epidermis | papillary |
| hair and nail follicles sensory receptors and glands are what | structures within the dermis |
| hair root contains cells called what | natrix |
| eyelashes function is what? | to trap dust |
| Heat loss that depends on evaporation is | sweating |
| epidermal cells make the skin relatively waterproof is | keratin |
| tissue that stores fat in the sub cutaneous tissue is | adipose |
| glands of the skin that maintain body temperature are | eccrine |
| receptors for pan are | free nerve endings |
| vitamin d is formed in the skin when the skin is exposed to | ultra violet rays |
| layer of the dermis which contains capillaries | papillary layer |
| hair follicle that undergoes mitosis | the hair root |
| epidermis that undergoes mitosis is the | stratum germinatibum |
| protein that protects our skin from UV rays | melanin |
| layer of the skin that prevents the entry of pathogens | stratum corneum |
| type of burn that has painful blisters are | 2nd degree |
| cells that increase secretion when stimulated by UV rays are | melenocites |
| the secretion that prevents drying of the ear drum is | cerumen |
| finger and toenail structures are know as what? | follicles |
| the dermis is strong because of the presence of what? | collagen fibers |
| potential risk of what is present with 3rd degree burns? | infection |
| human hair functions to keep dust out of what? | Eyes and nose |
| Adipose tissue is part of what? | Sub Cutaneous tissue |
| ____provide protection against bacteria | defensens |
| Adipose tissue stores what? | Fat |
| in the epidermis the surface layers of cells are what? | dead |
| lengerhans cells originate in the ____ | bone marrow |
| make hair, skin, and eyes darker | melanocytes |
| _____muscle stand hair up | erector pili |
| finger nails and toe nails | are nail follicles |
| protects the end of the digits | nails |
| ____provide information about the environment to the CNS | receptors |
| merkel cells are in the | stratum germinativum |
| encapsulated nerve endings receptors | touch and pressure |
| free nerve endings detect | heat cold and pain |
| glands are within the ___ | dermis |
| glands are made up of what type of tissue | epithelial |
| glands within the skin are what type of glands | exocrine |
| sebaceous ducts secret | seben |
| apocrine are located | axilla and pubic areas |
| ____is important in temperature regulation | the eccrine gland |
| ___increases blood flow to surface | vaso dilation |
| ____decreases blood flow to surfaces | vaso constriction |
| blood vessels are regulated by what? | CNS |
| Prolonged pressure causes lack of blood supply and leads to tissue death | decubitus ulcers |
| subcutaneous tissue provides | cushion |
| sub q tissue helps to regulate what? | temperature |
| another function of the i system is | excretion of waste through sweat |
| another function of the integumentry system | excreteion of waste though sweat |
| outter layer of the skin is ________ | epidermis |
| epidermis is made up of _____ | stratified squamis epithelium |
| stratum corneum is made up of many layers of _____ | dead cells |
| protein of the stratum cornium is_______ | keratin |
| ______ sweat glands maintain body temp | eccrine |
| produced in follicals in the scalp | subcutainious |
| ____ covers the surface of the body | skin |
| ____ is tissue that connects the skin and the muscles | subcutainous |
| ______ protects the end of the finger | nail |
| small arteries | arterioles |
| _____ detects changes in the enviroment | recepters |
| ______ produces melanin | mellonocyte |
| statum _____ produces new epidermal cells | oerminativum |
| ______ glan secretes cerumen | ceruminoys |
| ____ decreases blood flow though arterioles | vasoconstriction |
| _____ Increases blood flow though arterioles | vasodialation |
| gland that secreates sebum | sebaceous |
| inner layer of the skin | dermis |
| skin that is charded and maynot be painful at first | third degree burn |
| skin is painful but not blistered | first degree burn |
| skin is painfull an blistered | second degree burn |
| cells that produce collegen and elastin | fibroblast |
| protein that gives dremis its strenth | collegen fibers |
| protein that gives dermis elasticty | elastin fibers |
| mitosis at the root produces the hair shaft | hair follicals |
| mitosis at the root produces the nail | nail follicals |
| produces a lipid substance called sebum | sebacus gland |
| produces their secreation durring exercise or in warm enviroment | eccrine sweat glands |
| secretion durring times of stress or emotion | apocrine sweat glands |
| produce cereum or ear wax | ceruminous glands |
| provide information abot the outside enviroment | recepters |
| merkel cells are found in the _____ | stratum |