BIOL 237 Sample Test Questions

The Integument

 

Questions 1  through 5 utilize letters from the diagram of the epidermis shown below:

Letters are used only once.

1. The stratum lucidum.

 

2. This layer undergoes constant mitosis to replace the cells above it.

 

3. Keratin and keratohyaline accumulate in granules of cells in this layer.

 

4. This area represents a dermal papilla.

 

5. This cell secretes melanin.

 

6. This layer is called the stratum spinosum

 

7. This layer is constantly exfoliating.

 

 

 

 

 

 

 

 

 

 

8. Skin is classified as “thick” when it has:

            (A) a very thick cornified layer which produces callouses.

            (B) the stratum lucidum

            (C) the stratum basale

            (D) ketatinocytes

 

9. The turnover time for replacement of the epidermis averages:

            (A) 24 hours,   (B) 2 weeks,   (C) 2 years,   (D) it is never replaced.

 

10. Sudoriferous glands are:

(A) phagocytic glands in the skin,   (B) low frequency (crude) touch receptors,   (C) sweat glands,  

(D) glands which secrete an oily sebum.

 

11. The _____ are glands most important in thermoregulation.

            (A) eccrine sweat glands,   (B) apocrine sweat glands,   (C) sebaceous glands,   (D) synovial glands.

 

12. The _____ are glands which secrete a viscous fluid containing pheromones.

            (A) eccrine sweat glands,   (B) apocrine sweat glands,   (C) sebaceous glands,   (D) synovial glands.

 

13. The skin cancer with the greatest danger of metastasis is:

            (A) basal cell carcinoma,   (B) squamous cell carcinoma,   (C) melanoma.

14. The _____ secrete an oil important in waterproofing the skin.

            (A) eccrine sweat glands,   (B) apocrine sweat glands,   (C) sebaceous glands,   (D) synovial glands.

 

15. The _____ raise the hair follicles to produce “goosebumps” on the surface of the skin.

            (A) hair papillae,   (B) vellus hairs,   (C) arrector pili muscles,   (D) merkel disks.