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University of South Florida, St

Biology

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University of South Florida, St. Petersburg

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Quiz 6:

1)Jasmin suffers from an idiopathic, chronic autoimmune disease. The medical definition of “idiopathic” refers to .

 

 

2. A genetic skin disorder called                                         , which is referred to as a “fish-like condition”, is caused by a mutated gene coding for a structural protein resulting in a lack of keratinization of skin cells.

 

 

3. A benign pigmented spot on the skin, such as a mole, is called a                           .

 

 

4. Compare the number of melanocytes between fair-skinned individuals and dark-skinned individuals.

 

 

5. When you cut yourself and bleed/feel the sensation of pain, which cutaneous membranes have been damaged?

 

 

6. A person with                              will have a bronze-like appearance of their skin and nails and have hyperpigmentation of their gums.

 

 

7. Why does exposure to sunlight darken skin?

 

 

8. Diseases that involve not getting enough oxygen-rich blood to the blood vessels, such as certain pulmonary and heart diseases can cause the skin to take on a bluish color. What is the name of the abnormal condition of having bluish skin coloration?

 

 

9. Which layer of the cutaneous membrane lies directly inferior to the epidermis?

 

 

10. Eating too many carrots can result in an orangish skin tint. What is the name of the pigment that is responsible for the orangish coloration?