Term
| The Integumentary System General Functions |
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Definition
Protection
Temperature Regulation
Sensory Reception
Vitamin D Synthesis |
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Term
| The Integumentary System Minor Functions |
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Definition
Blood Resevoir
Excretion of waste |
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Term
| Stratum Lucidum/clear cell layer is only where? |
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Definition
| Plantar surface and palmar surface |
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Term
| How many layers of integument? What are they? |
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Definition
Hypodermis
Dermis
Epidermis |
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Term
| T/F Hypodermis is part of the skin system. |
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Definition
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Term
| What are the layers of the Dermis from most superficial to least superficial? |
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Definition
Papillary to Reticular
FIGURE 5.3, Page 154 |
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Term
| Describe the general dermis cell. |
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Definition
Heavy on mast and fibroblasts
Lots of collagen
Highly vascular and contains lymph vessels |
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Term
| Everyone has about the same number of melanocytes per square inch of skin. Every melanocyte produces about the same number of melanin molecules per day. SO, why do we have such a wide range of epidermal melanin content in this classroom? |
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Definition
Different regions have more sunlight.
Very long periods of time....Started out in Africa, most stayed there some moved on to regions that have differing seasons/light variations. Capturing enough UV during winter in Indy is a problem so less melanin is retained to block UV. |
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Term
| What cells are found in the Epidermis? |
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Definition
Keratinocytes, Melanocytes, Dendritic Cells, and Tactile Cells
FIGURE 5.2 pg 153 |
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Term
| What are the layers of the epidermis from most superficial to least superficial? |
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Definition
Cornified Cell Layer
Grainy Cell Layer
Spiny Cell Layer
Basal Cell Layer |
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Term
| Pacinian Corpuscle sense what? |
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Definition
| Deep touch/vibration/pressure |
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Term
| Reticular Layer contains what? |
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Definition
| Sense receptors, Hair follicles with the associated muscles, and sweat glands |
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Term
| Papillary Layer contains what? |
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Definition
| Dermal papillae, and sense receptors |
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Term
| Meissner's Corpuscle sense what? |
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Definition
| Senesitive touch, barely breeze past hair on the manus |
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Term
| What should we see in our skin pigmentation? |
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Definition
Melanin
Carotene
Hemoglobin |
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Term
| Melanin does what for the body? Why do we need this mechanism? |
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Definition
| Blocks UV light which protects our DNA |
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Term
| What is a Vitamin A precursor? And where is it stored? |
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Definition
| Carotene; stored in Subcutaneous fat |
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Term
| How can you tell the difference between Jaundice and tanning pills? |
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Definition
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Term
| What is malfunctioning in the liver when we see Jaundice? |
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Definition
| Normally the liver recycles hemoglobin, and other materials including biliverdin or bilirubin |
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Term
| Addison's disease is a result of what? |
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Definition
| Failure of adrenal glands to produce aldosterone. |
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Term
| What does aldosterone do? |
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Definition
| Regulates water and ion balance in integument. (Na+ and K+) |
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Term
| What is the cause of ideopathic alopecia? |
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Definition
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Term
| Why do you lose hair during chemotherapy? |
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Definition
| Kills many dividing cells including hair cells. |
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Term
| Do women show male pattern alopecia? When? Why not before then? |
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Definition
Yes
Menopause; Because estrogen and progesterone block the effects of testosterone. |
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Term
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Definition
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Term
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Definition
| Keeps the corpuscles at the right distance beneath epidermis to work properly. |
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