1. Work from today will go on p. 45 AFTER SIGNATURE
Sponge: Set up Cornell Notes on pg. 47 Topic: 6.6 Aging and Skin Cancer Essential Questions: What is the most common type of skin cancer? WHO is most likely to develop this cancer?
6.6 Aging and Skin Cancer
2.1 Atoms, Ions, and Molecules
What is the most common type of skin cancer? WHO is most likely to develop this cancer?
Skin Deep p. 44
Work from today will go on p. 45 AFTER SIGNATURE

2. Life Span Changes
Why are we more aware of aging-related changes in skin than in other organ systems?
We can easily see them
Aging affects appearance

3. Life Span Changes
Aging skin affects appearance, temperature regulation, and vitamin D activation

4. Life Span Changes- Epidermis
Thins
Cell cycle slows
Epidermal cells grow larger and irregular in shape
Skin may appear scaly
Age spots or liver spots appear/grow

5. Life Span Changes-Dermis
Dermis is reduced as the production of collagen and elastin slows
Loss of fat from subcutaneous layers
Sagging and wrinkling of the skin
Delay of wound healing
Decrease of oil production
Dry skin

6. Life Span Changes-Accessory Structures
Melanocytes:
Melanin production slowed
Grays or whitens hair
Hair:
Hair follicles decrease in #
Hair growth slows
Hair thins
Males may develop baldness
Less sensitive

7. Life Span Changes-Accessory Structures
Nails:
Diminished blood supply to nails impairs growth
Dull and hardened
Receptors:
Number of pain/pressure receptors decline
Less sensitive

8. Life Span Changes-Accessory Structures
Temperature Regulation:
Ability to control temperature falters as sweat gland and hair follicle shrink and # decreases
Ability to shiver declines
Less able to tolerate heat/cold
Skin color:
Fewer blood vessels underlying the skin
May appear pale

9. Life Span Changes-Accessory Structures
Vitamin production:
Vitamin D production goes down
Loss of ability to maintain bone structure
Must take vitamins

10. p. 46
Skin Cancer
Skin Cancer begins when ultra violet radiation mutates the DNA of a skin cell
Usually arises from non-pigmented epithelial cells within the deep layer of the epidermis OR from pigmented melanocytes

11. p. 46
Skin Cancer
Melanoma
Carcinoma

12. Cutaneous carcinomas are skin cancers originating from the epithelial cells
Most common type of skin cancer
Occur most freq. in light-skinned people over 40 yrs old
Usually appear in people who are regularly exposed to sunlight
2 types:
Basal cell carcinoma
Squamous cell carcinoma

13. Cutaneous Melanomas arise from the melanocytes
Seems to be caused by short, intermittent exposure to high-intensity sunlight
Appear most often in the skin of the trunk, back, and on limbs

14. Clinical Application 6.1: Skin Cancer
Read Clinical App 6.1
Answer the Questions
HIGHLIGHT + Number the answers in the reading (as evidence)
Read A Tan is not a Sign of Health
HIGHLIGHT important info
GET FROM TRAY
p. 46

15. Taping Time (if time)
32: Children die after being left in hot cars article
34: Layers of the skin (1/2 sheet)
36: 6.3 Clinical Application
42: Skin color map (colored in class)
44: Skin Deep article
45: The Human Spectrum handout/answer sheet
46: 6.1 Clinical App

16. Google Docs Group Presentation
Skin Cancer Project
Google Docs Group Presentation

17. Day 1
As a group you will design a Google Slide presentation to educate the class on a particular topic related to skin cancer.
Groups assigned by # (1-9)
Planning/Research
Only one person in the group will submit the project
Submit MON at end of period
PRESENTATIONS ON TUES/WED/THURS (if needed)

18. Day 2
As a group you will design a presentation to educate the class on a particular topic related to skin cancer.
Create Google Slide Presentation

19. Day 3
As a group you will design a presentation to educate the class on a particular topic related to skin cancer.
Finish Google Slide Presentation
Turn into Google Classroom under 1 person’s name
Must be in Google slides
Practice for presentation

20. Skin Cancer Presentations
As a group you will design a presentation to educate the class on a particular topic related to skin cancer.

21. Study Guide Complete the study guide MUST be complete by tomorrow
It is your only resource to take the practice test
Finished? Study or Notebook
*Will not be collected until Friday

22. UV Bead Activity

23. UV Light Read the background on UV light
Highlight important details
Fill out the prediction portion on the back of your sheet
Come up with 5 tests of your own

24. UV Light Get in pairs Test as many scenarios as possible
Each pair gets 3 beads
Test as many scenarios as possible
Choose 5 of your own
Answer the questions on the bottom