Term
| list functions of epithelia |
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Definition
1) protection,
2) act as barriers,
3) permit the passage of substances,
4) secrete substances,
5) and absorb substances. |
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Term
| list functions of connective tissue |
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Definition
1) Plentiful as it makes up a part of every organ
2) Abundant extracellular matrix
3) Encloses and separates body organs
4) Connects tissues to one another
5) Provides for support and movement
6) Stores energy and minerals
7) Cushions and insulates
8) Transports
9) Houses white blood cells |
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Term
| four categories of membranes |
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Definition
1) mucos
2) serous
3) synovial
4) cutaneous |
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Term
| charachteristics of mucos membranes |
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Definition
1) mucos secretion
2) epithelium
3) lamina propria |
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Term
| location of mucos membranes |
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Definition
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Term
| charachteristics of serous membrane |
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Definition
1) Transudate
2) mesothelium
3) Areolar tissue/ loose connective tissue |
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Term
| location of serous membrane |
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Definition
1) pericardial,
2) pleural and
3) peritoneal cavities |
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Term
| charachteristics of synovial tissue |
|
Definition
1) fat
2) loose connective tissue
3) epitheal |
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Term
| location of synovial tissue |
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Definition
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Term
| list skin's major functions |
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Definition
1) Protection
2) Sensation
3) Storage
4) Temperature regulation
5) Vitamin D production
6) Excretion |
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Term
| list the two layers of skin |
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Definition
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Term
| 2 layers of deeper layers of skin |
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Definition
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Term
| components of papillary layer |
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Definition
1) Projections into the uppermost layer of skin, the epidermis
2) Contains the endings of capillaries, lymphatics and sensory neurons |
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Term
| components of reticular layer |
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Definition
1) Dense,
2) irregular CT |
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Term
| list the upper layer's 5 layers of strata |
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Definition
1) Stratum Basale
2) Stratum Spinosum
3) Stratum Granulosum
4) Lucidum
5) Stratum Corneum |
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|
Term
| charachteristics of Stratum Basale |
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Definition
1) deepest Stratum
2) Hemidesmosomes anchor cells to basal lamina
3) Basal or germinative cells act as stem cells
4) Melanocytes, responsible for pigmentation, are found in this layer |
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Term
| charachteristics of stratum spinosum |
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Definition
1) 8 to 10 cells thick
2) Cell division is still observed
3) Langerhans cells are found in this strata |
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Term
| charachteristics of stratum granulosum |
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Definition
1) Keratohyalin and keratin accumulate
2) Cause cells to alter their shape
3) Leads to organelle disintegration and cell death |
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Term
| charachteristics of Stratum lucidum |
|
Definition
1) Thin, clear zone where keratohyalin and keratin spread throughout keratinocytes
2) Present only in areas such as the palms and soles |
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Term
| charachteristics of Stratum Corneum |
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Definition
| 1) 25 or so cells thick of dead squamous 2) cells joined by desmosomes. |
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|
Term
| 4 cell types found in upper layer |
|
Definition
1) Keratnocytes
2) Melanocytes
3) Langerhans
4) Merkels |
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Term
| where are white blood cells housed? |
|
Definition
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Term
|
Definition
| an oily, white substance that is rich in lipids |
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Term
| where is transitional epithelium located? |
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Definition
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Term
| where is squamous located |
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Definition
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Term
| where is cuboidal located? |
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Definition
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|
Term
| where is columnar located? |
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Definition
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Term
| where is cell division observed? |
|
Definition
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|
Term
| where is cell death first observed? |
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Definition
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Term
|
Definition
| process of keratinocyte movement from s. basale to corneum |
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Term
| what can skin color be attributed to? |
|
Definition
1) pigment
2) thickness of stratum corneum
3) blood flow |
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Term
| charachteristics of hypodermis |
|
Definition
1) subcue fascia
2) attaches skin to bone
3) consists of areolar and adipose tissue
4) is usually elastic
5) contains about .5 of bodies stored fat |
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Term
|
Definition
| Bulb to Matrix to Medulla to Cortex to Cuticle |
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Term
|
Definition
1) Medulla
2) Cortex
3) cuticle
4) @skin surface |
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Term
| where are tight junctions located? |
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Definition
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Term
| charachteristics of tight junctions |
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Definition
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Term
| where are gap junctions located? |
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Definition
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Term
| charachteristics of gap junctions |
|
Definition
1) 2 cytoplasms
2) stuck together to make channel |
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Term
| where are desmosomes located? |
|
Definition
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Term
| charachteristics of dewmosomes |
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Definition
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