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Quiz 03: The integumentary System
1. What is the difference between “thin skin” and “thick skin?”
2. In what epidermal layer does keratinization begin?
3. Which of the following properties of skin help defend against bacteria?
4. Which layer of the epidermis is typically the thickest? (20-30 layers of dead cells)
5. What is the order of the strata that a needle would pass through when inserted into thin skin?
a. Corneum, granulosum, spinosum, basale
b. Corneum spinosum, granulosum, basale
6. Which of the following glands is most highly influenced by stress/hormones?
a. goblet cells
b. mucous glands lining the trachea
c. eccrine sweat glands on the forehead
d. sebaceous/oil glands
7. The majority of sensory receptors are located in what region of the skin
a. The Stratum spinosum
b. The stratum corneum
c. The Dermis
d. none of the above
8. Which layer of the hair is the strongest, contains the most keratin, and gives hair its shape?
a. The Medulla
b. The Cortex
c. The cuticle
d. none of the above
9. Which of the following is largely composed of areolar connective tissue?
a. The reticular layer of the dermis
b. The papillary layer of the dermis
c. The stratum corneum
d. all of the above
10. In which layer will you find the majority of cells to be alive?
a. Stratum Lucidum
b. Stratum Corneum
c. Stratum Stratum basale
d. None of the above
T or F
11. The skin holds roughly 15% of the body’s total blood on average
12. The epidermis contains some capillaries
13. Hair follicles are located in the dermis
14. Apocrine glands are the most common time of sweat glands
15. The hypodermis allows the skin to move over the underlying fascia, thus adding to the skin’s resistance to injury
16. Thanks to lamellar granules and other lipid/protein compounds, the skin is able to prevent water loss, and function as a physical barrier between the body’s interior and the exterior environment.
17. Melanin and DNA serve as two biological barriers to damage from UV rays
18. The skin is very basic (alkaline/low pH) and therefore prevents bacteria from living on it
19. The cell layer that divides living tissue from dead tissue in the skin is the stratum basale
20. Melanocytes are found in the stratum basale