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integumentary system
study guide
26
Anatomy
11th Grade
09/26/2010

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Term
2.what occurs to cells as the are pushed from the deeper portions of the epidermis toward the surface?
Definition
2.stretch marks
Term
3.what is the dermis largely composed of?
Definition
3.reticular layer
Term
4.compare an eccrine sweat gland with an apocrine one?
Definition
4.they are both in the hair follicles
Term
5.how does your body normally respond to excessive loss of heat in a cold environment?
Definition
5.cold ; shiver ; goose bumps
Term
6.what does exposure to ultraviolet do to the skin?
Definition
6.sunburn
Term
8.in which regions of the body are the apocrine sweat glands the most numerous?
Definition
8.axillary and anogentail areas
Term
9. how are sweat gland diff. from sebaccous glands?
Definition
9. sweat glands are everywhere but genital areas and sebaccous are found everywhere but your soles and palms
Term
12. what happens to the skin with aging?
Definition
12. wrinkles
Term
13. how does acne occur?
Definition
13. acne is an active inflammation of the sebaccous gland accompanied by " pimples " on the skin.
Term
14. what is located in the dermis?
Definition
14. blood vessels and pain receptors.
Term
14. why mite elderly people become less able to maintain a stable body temp.?
Definition
14. because their immune system weakens
Term
15. what type of burn involves only the epidermis?
Definition
15. 1st. degree burn
Term
16. is skin considered an organ?
Definition
16. yes
Term
17 . what is the stratum lucidum?
Definition
17. is the clear layer of skin that is below the corneum.
Term
18. how many cells are made a day? and sloughed off?
Definition
18. 1/2 million
Term
19. what type of muscle tissue makes up the arrector pili muscle?
Definition
19. connective tissue
Term
20. what is sebum?
Definition
20. glands secrete an oily secretion
Term
21. what type of protein is in the skin?
Definition
21. melotonine.
Term
23. stratum lucidum
Definition
23. thin band , consist of a few rows of clear , flattened ; dead keratinecytes with indistinct boundaries.
Term
24. stratum spinosum
Definition
24.A layer of irregular transparent epidermal cells with traces of nuclei interposed between the stratum corneum and stratum germinativum in the thick skin of the palms and soles.
Term
25.stratum granulosum
Definition
25. the layer of epidermis just under the stratum corneum or (on the palms and soles) just under the stratum lucidum; contains cells (with visible granules) that die and move to the surface
Term
27. stratum corneum
Definition
27. The Stratum Corneum is the outermost layer of the Skin. This layer contains almost entirely Dead Cells which a free of a nucleus and lacking in most organelles. These cells are usefull for aiding protection of the deeper layers of the skin as well as aiding water reabsorbtion. They are constantly being rubbed away by life and being replaced by the Statum Germinetrium.
Term
28. what is involved in acne?
Definition
28. sebaccous , secretes alot of iol , gets clogged up , so bacteria gets in and creates a black head.
Term
29. how does a skin wound get healed?
Definition
29. 1.) histamine 2.) inflammed 2.) cell migration
Term
30. how are the diff. type of burns determined?
Definition
30. 1st degree - damage dermis
2nd - destroys dermis and epidermis
3rd - destroys dermis / epidermis , damage below , little pain
Term
31. what are the functions on the skin?
Definition
31. It provides protection from both injury (such as abrasion) and dehydration. Since outer skin cells are dead and keratinized, the skin is waterproof, thereby preventing fluid (water) loss , the skin's waterproofing also prevents water from entering. The skin is a barrier against invasion by bacteria and viruses and is involved in the regulation of body temperature. It is the site for the synthesis of an inactive form of vitamin D.the skin contains receptors that receive the sensations of touch, vibration, pain, and temperature.
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