Term
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Definition
| the process of the older cells filling with keratin to form a protective barrier after cell death. |
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Term
| skin rests on the hypodermis and it contains… |
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Definition
1) blood vessels and nerves that supply the upper layers of skin.
2) loose connective tissue with collagen and elastin fibers. |
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Term
| types of cells within the hypodermis include |
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Definition
1) fibroblasts,
2) adipocytes
3) and macrophages |
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Term
| also sometimes termed subcutaneous tissue or superficial fascia |
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Definition
|
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Term
| undergo mitotic cell division about every 17 days |
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Definition
|
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Term
| entire lifespan of keratinocytes |
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Definition
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Term
| charachteristics of thick skin |
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Definition
| has all five layers as found in the palms, soles of the feet and fingertips. |
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Term
| charachteristics of thin skin |
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Definition
1) will lack the stratum lucidum
2) each of the other layers will have fewer cells than found in thick skin. 3) Hair is found only in thin skin. |
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Term
| how is melanin manufactured? |
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Definition
|
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Term
| how is melanin distributed? |
|
Definition
| from the stratum basale to the stratum spinosum |
|
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Term
| what is production of melanin determined by? |
|
Definition
1) genetic factors,
2)hormones,
3)and exposure to light |
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Term
|
Definition
1) palms,
2) soles,
3) lips,
4) nipples,
5) parts of external genitalia
6) distal portions of the toes and fingers. |
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Term
|
Definition
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Term
|
Definition
1) the stratum basale
2) as well as more superficial levels. |
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Term
| Smooth muscle cells that are associated with each hair follicle |
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Definition
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|
Term
| Contraction of these muscles causes hair to stand on end. |
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Definition
|
|
Term
| sebaceous glands (holocrine) |
|
Definition
| simple or complex alveolar glands that produce sebum. |
|
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Term
| what are sebaceous glands also called? |
|
Definition
|
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Term
|
Definition
1) merocrine
2) or apocrine |
|
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Term
| what do merocrine glands do? |
|
Definition
| Merocrine (or eccrine) glands typically are simple coiled tubular glands that open directly on the skin surface through sweat pores. The secretion is mostly water with small amounts of salts and other components. |
|
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Term
| what do apocrine glands do? |
|
Definition
Compound coiled tubular glands
Found around genitalia and anus
Become active at puberty but are not part of the temperature regulation of the body |
|
|
Term
| what are ceruminous glands |
|
Definition
| The ceruminous glands are modified merocrine sweat glands located in the ear canal. |
|
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Term
|
Definition
| Eponychium is lateral and proximal covering |
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Term
|
Definition
| Beneath the free edge of the nail body |
|
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Term
|
Definition
| small portion of the nail matrix that is visible |
|
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Term
|
Definition
| The nail is stratum corneum. |
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Term
| what are the nonfibrous molecules found in extracellular matrix? |
|
Definition
1) Hyaluronic acid
2) Polysaccharide
3) Proteoglycans
4) Trap water
5) Also adhesive molecules that adjust consistency of the ground substance |
|
|
Term
| what does the extracellular matrix consist of? |
|
Definition
1) ground substances
2) protein
-collagen
-elastin
- reticular
3) adhesion molecules
4) hyaluronic acid
5) proteoglycans |
|
|
Term
| how does the injury process work? |
|
Definition
1) Injury
2) Inflammation
3) Scar Tissue
4) Regeneration |
|
|
Term
| what type of muscle tissue is repairable? |
|
Definition
|
|
Term
| what type of muscle tissue is not repairable? |
|
Definition
1) Skeletal
2) Cardiac
3) Nervous |
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