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APHY101
Exam 2 Flashcards
26
Anatomy
Undergraduate 1
06/12/2013

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Cards

Term
The Integumentary System General Functions
Definition
Protection
Temperature Regulation
Sensory Reception
Vitamin D Synthesis
Term
The Integumentary System Minor Functions
Definition
Blood Resevoir
Excretion of waste
Term
Stratum Lucidum/clear cell layer is only where?
Definition
Plantar surface and palmar surface
Term
How many layers of integument? What are they?
Definition
Hypodermis
Dermis
Epidermis
Term
T/F Hypodermis is part of the skin system.
Definition
FALSE, INTEGUMENT
Term
What are the layers of the Dermis from most superficial to least superficial?
Definition
Papillary to Reticular
FIGURE 5.3, Page 154
Term
Describe the general dermis cell.
Definition
Heavy on mast and fibroblasts
Lots of collagen
Highly vascular and contains lymph vessels
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?
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.
Term
What cells are found in the Epidermis?
Definition
Keratinocytes, Melanocytes, Dendritic Cells, and Tactile Cells
FIGURE 5.2 pg 153
Term
What are the layers of the epidermis from most superficial to least superficial?
Definition
Cornified Cell Layer
Grainy Cell Layer
Spiny Cell Layer
Basal Cell Layer
Term
Pacinian Corpuscle sense what?
Definition
Deep touch/vibration/pressure
Term
Reticular Layer contains what?
Definition
Sense receptors, Hair follicles with the associated muscles, and sweat glands
Term
Papillary Layer contains what?
Definition
Dermal papillae, and sense receptors
Term
Meissner's Corpuscle sense what?
Definition
Senesitive touch, barely breeze past hair on the manus
Term
What should we see in our skin pigmentation?
Definition
Melanin
Carotene
Hemoglobin
Term
Melanin does what for the body? Why do we need this mechanism?
Definition
Blocks UV light which protects our DNA
Term
What is a Vitamin A precursor? And where is it stored?
Definition
Carotene; stored in Subcutaneous fat
Term
How can you tell the difference between Jaundice and tanning pills?
Definition
Look at the eyes
Term
What is malfunctioning in the liver when we see Jaundice?
Definition
Normally the liver recycles hemoglobin, and other materials including biliverdin or bilirubin
Term
Addison's disease is a result of what?
Definition
Failure of adrenal glands to produce aldosterone.
Term
What does aldosterone do?
Definition
Regulates water and ion balance in integument. (Na+ and K+)
Term
What is the cause of ideopathic alopecia?
Definition
No one knows
Term
Why do you lose hair during chemotherapy?
Definition
Kills many dividing cells including hair cells.
Term
Do women show male pattern alopecia? When? Why not before then?
Definition
Yes
Menopause; Because estrogen and progesterone block the effects of testosterone.
Term
What are nails?
Definition
Modified hair
Term
Function of nails?
Definition
Keeps the corpuscles at the right distance beneath epidermis to work properly.
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