Name: ______________________________ Period: _________ Date: ___________
Lab Activity: Reading Guide – Body Membranes and Skin
1.
Define “body membranes”.
2. What are the two types of membranes, and what specific types of membranes do these groups
include?
3. What is another name for cutaneous membrane?
4. Complete the following table relating to body membranes. Enter your responses in the blank areas.
Membrane
Tissue Types
Common Locations
Functions
Wet or Dry
membrane?
Mucous
Serous
Cutaneous
Synovial
5. What are the two layers of serous membranes? What’s the difference between them?
6. What are serous membranes separated by?
7. Where are each of the following serous membranes located?
a. Peritoneum
b. Pleura
c. Pericardium
8. Four simplified diagrams are shown in the following figure. Select different colors for the membranes
listed below, and use them to color the coding circles and the corresponding structures.
O = Mucous Membrane
O = Visceral pleura (serosa)
O = Visceral pericardium (serosa)
O = Parietal Pleura (serosa)
O = Parietal pericardium (serosa)
O = Synovial Membrane
9. What does “integument” mean?
10. Why is skin essential?
11. What are some of the functions of skin?
12. What are the 2 outer-most layers of skin, and what kind of tissue are these layers made of?
13. Define “keratinizing”.
14. What “layer” is below the dermis, and what purpose does it serve?
15. What are the five strata (layers) of epidermis?
16. Which strata of epidermis is the thickest?
17. How long does it take for humans to have a “new” epidermis (due to flaking of the skin)?
18. What is the purpose of melanin?
19. What are the two areas of the dermis?
20. What are dermal papillae? What identification trait on humans are dermal papillae responsible for?
21. What is the purpose of the reticular layer?
22. Patients in hospital beds are rotated every two hours to prevent bedsores (ulcers). Why is this
effective?
23. What three pigments contribute to skin color?
a.
b.
c.
24. What causes the coloring of a bruise?
25. Where are sebaceous glands found, and what do they secrete?
26. For each of they types of sweat glands, state where they are found, and what kind of product they
secrete.
a. Eccrine glands
b. Apocrine glands
27. What are some purposes of hair?
28. Define the following parts of hair:
a. Root
b. Follicle
c. Hair bulb matrix
29. A man got his finger caught in a machine at a factory. The damage was less serious than expected,
but the entire nail was torn from his right index finger. The parts lost were the body, root, nail bed,
nail matrix, and cuticle.
a. Define each of the parts of the nail:
i. Body
ii. Root
iii. Nail bed
iv. Nail matrix
v. Cuticle
b. Is this nail likely to grow back? Why or why not?