1. Simple squamous epithelial tissue

2. Stratified squamous epithelial tissue

3. Simple cuboidal epithelial tissue

4. Stratified cuboidal epithelial tissue

5. Simple columnar epithelial tissue

6. Pay attention to how many cells there are. *BONUS* Name that cell…8.
7. Pseudostratified Ciliated Columnar Epithelial Tissue *Bonus – Goblet Cell

7. Adipose connective tissue

8. Areolar connective tissue

9. Reticular connective tissue

10. The Integumentary System

11. Functions of the Integumentary System
Protection
Body temperature regulation
Dilation
Constriction
Sweat gland secretions
Cutaneous sensation
Metabolism

12. Three major regions

13. Cells of the Epidermis Keratinocytes Melanocytes Langerhans’ cells
Merkel cells

14. THICK vs THIN skin

15. Epidermis Five layers:
Stratum corneum: dead cells; keratin dominate cells; can become thick from irritation
Stratum lucidum: Present in thick skin only, dead cells
Stratum granulosum: cells dying; begin keratinization
Stratum spinosum : living cells, keratin generation
Stratum basale: youngest cells; specialized cells present

16. Dermis Strong, flexible connective tissue Cell types: fibroblasts
macrophages
mast cells
white blood cells
Composed of two layers
– papillary and reticular

17. Hypodermis
Energy storage
Highly vascularized

18. Skin Color Three pigments contribute to skin color Melanin Carotene
yellow to reddish-brown to black pigment
Freckles and pigmented moles
Albinism
Carotene
yellow to orange pigment
Hemoglobin
reddish pigment

19. Fingerprint Characteristics

20. Integumentary Accessories

21. Sweat Glands Eccrine glands sweat Apocrine glands Ceruminous glands
Mammary glands
sweat
odor
wax
milk

22. Sebaceous Glands All over except… Androgen Sebum Functions:
Lubrication
Waterproofing
Complications…

23. Nails Keratin Consist of: Growth - 0.5 mm/week
Free edge
Body
Lunula*
Root
Cuticle
Growth mm/week
 fingernails faster than toe nails …why?

24. Hair Filamentous strands of dead keratinized cells Functions?
Hint…there are 6
Locations
2 types
Vellus
Terminal

25. Hair Follicle Regions: Shaft Root Medulla (inner) Cortex (outer)
Cuticle (cover)

26. Hair Thinning and Baldness
Androgenic alopecia – hair thinning in both sexes
True (frank) baldness
Genetically determined
Sex-influenced condition
Male pattern baldness
Hair thinning

27. Rule of Nines
Figure 5.8a

28. Melanoma Melanomas typically have the following characteristics:
A: Asymmetry
B: Border
C: Color
D: Diameter >6 mm
E: Evolution
 ABCDE Rule

29. Developmental Aspects of the Integument: Fetal
Lanugo
Vernix caseosa

30. Adolescent to Adult Oil, hair and acne…oh my! Sweat!
Cumulative environmental assaults
Scaling
Dermatitis

31. Developmental Aspects of the Integument: Old Age
Replacement of cells slows and skin gets thinner
Decreased lubrication
Decreased elasticity
Loss of subcutaneous tissue
Decreased numbers of
Melanocytes
Langerhans’ cells