med term chapter 5 fxn systems

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Primary fxn/ description of
skin
- Protection
- Regulation
- Sensation
- Secretion
Primary fxn/ description of
Epidermis

Outer protective covering of the body that can be divided into five strata (layers)
Primary fxn/ description of
Stratum germinativum
- Innermost epidermal layer responsible for regeneration of the epidermis
- contains melanin
Primary fxn/ description of
Melanin
- a pigment that gives color to the skin formed in Stratum germinativum layer
- the more aboundant the darker the color of the skin
Primary fxn/ description of
Stratum spinosum
- Means spiny layer
- each time a stem cell divides one of the daughter cells is pushed into this layer
- contains langerhans cells
Primary fxn/ description of
Langerhans cell

responsible for stimulating a defense against invading microoranisms and suuperficial skin cancers
Primary fxn/ description of
Stratum granulosum

large amonts of keratin
Primary fxn/ description of
keratin
- a protein substance
- basic structural component of hair and nails
Primary fxn/ description of
stratum lucidum
- present in thick skin of the palms and soles
- cells are flattened densely packed and filled with keratin
Primary fxn/ description of
stratum corneum
- outermost horny layer consisting of dead cells
- cells active in the keratinization process
- forms protective covering for the body
Primary fxn/ description of
keratinization process

the cells lose their nuclei and become hard or horny
Primary fxn/ description of
dermis

nourishes the epidermis provides strength and supports blood vessels
Primary fxn/ description of
papillae

produce ridges that are ones fingerprints
Primary fxn/ description of
subcutaneous tissue

supports nourishes insulates and cushions the skin
Primary fxn/ description of
hair
- provides sensation and some protection for the head,
- around the eyes nose and ears filters out foreign particles
Primary fxn/ description of
nails

protects ends of fingers and toes
Primary fxn/ description of
sebaceous glands

lubricates the hair and skin
Primary fxn/ description of
sudoriferous glands
- secretes sweat or perspiration which helps to cool the body by evaporation
- also rids the body of waste

Author

jennnewton

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Card Set

med term chapter 5 fxn systems

Description

fxns and description of integumentary system

Updated

2011-09-02T16:07:41Z