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28 Cards in this Set
- Front
- Back
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The accessory organs of the integumentary system include
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glands, nails, hair
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major fxns of skin (4):
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- protection (barrier, cushion)
- synthesizes, stores vitamins (Vit D) - Sensory reception (touch, pressure, pain, temperature) -Regulates body temp (sweat, blood vessels) |
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Routes of drug administration include:
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- Topical drug delivery
- transdermal drug delivery (TDD) |
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True or False: the Epidermis Has capillaries and nerve endings present.
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False, the epidermis does not have capillaries or nerve endings present
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State the major layers of the epidermis (2):
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- Stratum Corneum
- Stratum Germinativum |
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which layer of the epidermis contains layers of dead cells?
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outer layer- stratum corneum
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What chemical is importance for the barrier fxn of stratum corneum? Why?
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Keratin is important for the barrier fxn, it is water-proof
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Statum corneum prevents...
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- evaporation of body H2O
- the entry of H2O |
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Another barrier fxn of stratum corneum besides that to water is...
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barrier to pathogens & chemicals, it is the rate limiting barrier for transdermaldrug delivey
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New cells are continually produced in this layer of the epidermis...
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stratum germinativum
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The cells of the epidermis include (4):
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- keratinocytes
- melanocytes - Langerhan cells - Merkel cells |
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The most abundant cell of the epidermis...
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keratinocyte
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Living keratinocytes synthesize antimicrobial peptides called ____
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defensins
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sebaceous glands are...
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oil glands
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sebaceous glands are present everywhere except...
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palms and soles
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______ inhibits bacteria growth and prevents dry skin & hair
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sebum (oil)
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State the types of sweat glands (3):
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eccrine
apocrine modified apocrine |
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Eccrine sweat glands...
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- most numerous
- excrete true sweat through pores |
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apocrine glands are located ...
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- axillary (under arm)
- anal & gential areas give individual odor |
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apocrine glands open into...
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hair follicles or directly to skin surface
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modified apocrine glands are:
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Ceruminous --secrete ear wax
mammary --secrete milk |
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Most sensory receptors for the cutaneous senses are found in...
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the dermis!
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the most sensitive areas of the body...
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skin of hands, feet, and tounge
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earwax is also known as
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cerumen
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hypodermis (subcutaneous) is also called...
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superficial fascia
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hypodermis is characterized by...
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adipose tissue
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Fxns of subcutaneous tissue --adipose tissue
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- cushion
-energy storage - insulation |
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Fxns of subcutaneous tissue --areolar connective t issue
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- mast cells (inflammation)
-WBCs --destroy pathogens - connects skin to muscles |
