Question

clinical application 6.1: (clinical app 6.1: p. 189 - 90)
too much exposure to uv rays may lead to what types of dangerous disorder(s)?
what 2 types of skin cells are skin cancer most likely to develop from? (hint - your tree - map headings)
list the characteristics of people who are most likely to develop a cutaneous carcinoma.
cutaneous melanomas seem most commonly to be caused by what type of uv exposure?

Explanation:

Excessive UV - ray exposure can cause skin - related disorders. Skin cancer often develops from certain skin cells. Specific characteristics make people more prone to cutaneous carcinoma, and a particular type of UV exposure is linked to cutaneous melanomas.

1. Too much UV - ray exposure can lead to skin cancer and premature skin aging.
2. Skin cancer most likely develops from keratinocytes and melanocytes.
3. People most likely to develop cutaneous carcinoma have fair skin, a history of excessive sun exposure, a family history of skin cancer, a weakened immune system, and are older in age.
4. Cutaneous melanomas are most commonly caused by intermittent, intense UV exposure (such as sunburns).

Answer:

1. Skin cancer and premature skin aging
2. Keratinocytes and melanocytes
3. Fair skin, history of excessive sun exposure, family history of skin cancer, weakened immune system, older age
4. Intermittent, intense UV exposure (such as sunburns)