Lab 4 - Tissues and Skin

Skin Model Answer Key:

Skin Model Key:

I. Epidermis
II. Dermis
III. Hypodermis (subcutaneous)
1. Stratum corneum
1a. Stratum lucidum
2. Stratum germatativum
2a. Stratum granulosum
2b. Stratum spinosum
2c. Stratum basale
3. Papillae
4. Touch (Meissner) corpuscle
5. Adipose tissue
6. Laminated (Pacinian) corpuscle
7. Sweat (Eccrine) gland
8. Hair (longitudinal section)
8a. Medulla
8b. Cortex
8c. Cuticle
8d. Internal epithelial root sheath
8e. External or outer epithelial root sheath
8f. Glassy (hyaloid) membrane
8g. Fibrous connective tissue root sheath
9. Hair (cross-section)
10. Hair shaft
11. Root
11a. Hair bulb
12. Hair papilla
13. Sebaceous glands
14. Arrector pilli muscle
15. Sweat (apocrine) gland
15a. Smooth muscle cells
15b. Hyaline top
15c. Part of the pushed out cell body