Anatomy and Physiology Lab

Topics: Cancer, Ultraviolet, Oncology Pages: 3 (652 words) Published: May 1, 2013
anatomy and physiology lab

1. What are some differences between Judy and Mariah that might make Judy more "at risk" for skin?

cancer than Mariah?Judy had a pasty white skin. Therefore, her skin had less melanin than Mariah who had black hair and more melanin and are more protected against the uv rays of sun. 2. What observations did Judy make concerning her mole?

Her mole changed shaped and turned bigger and its side were jagged. The middle was purplish-black and its edge were darker than its middle.

3. Considering the differences between a benign tumor and a malignant tumor, why might a benign tumor be easier to treat?

benign tumors do not metastasize to other parts of the body but the malignant tumors do. Therefore, physical removal of the malignant tumor does not mean that problem is solved. It could have spread to other parts of the body, and therefore, this issue must be addressed in the treatment regiment. Benign tumors grew slower than the malignant tumors as well.

4.. Judy learned that every single person has these cell cycle genes so cells in our body can divide when necessary. What are some normal circumstances where our bodies might need to make more cells?

Our body might need to make more cells during repair and anabolism. Usually cells are in contact with outside world like epithelium divide cells more often that others. However those are highly specialized like red blood cells do not divide as often.

5.Every person has these cell cycle proto-oncogenes, but not every person has cancer. Why mightthis be the case?

Proto-oncogenes make cell cycle promoting factors abnormally when they are damaged via radiation (uv) or chemical carcinogen ( asbestos). These genes are important for regular functioning of the body. However they cause problem when they are produced in large quantities. Even if these gene start producing many promoting factor usually immune system keeps their products in check. However when immune system...
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