Cancer is a disease characterized by disorderly division of cells, combined with the malignant behavior of these cells. Malignant cancer cells tend to spread, either by direct growth into adjacent tissue through invasion, or by implantation into distant sites by metastasis (the process whereby cancer cells can move through the bloodstream or lymphatic system to distant locations). Cancer may affect people at all ages, but risk tends to increase with age. It is one of the principal causes of death in developed countries. (http://en.wikipedia.org/wiki/Cancer)
Cancer cells are nonspecialized and do not contribute to the functioning of a body part. The cell usually divides itself 60 - 70 times before dying. Cancer cells never die and keep dividing until eventually they end up creating tumors.
There are over 200 types of cancer. Some of the more common ones we hear about are skin cancer, lung cancer and breast cancer. You can develope cancer in any one of your bodies organs. Statistics indicate that 1 in 3 Americans will deal with cancer at some point in there life. Cancer has many different causes. One maybe caused by enviromental factors, while another is caused by your genes and inheritating it. Cancer may also be caused by your diet.
Treatment of cancer includes surgery to remove the tumor, radiation therapy and chemotherapy. Typically they say if after treatments you can go 5 years without cancer then you are now cancer free.
1 comment:
Stacy, I know you’re working on the things that are missing. Send me an e-mail when all is ready. Let me know if you have any questions,
LF
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SELF/UNIT EVALUATION: I didn’t see this in your blog. Please be sure you answer these questions for an easy 5 points. Send me an e-mail when you’ve answered them.
COMPENDIUM REVIEW 1: CELLS: This is an effective review. I again like how you break everything down into small topics, each with their own entry and well-chosen graphic. Please again be careful about copying directly without showing quotes. And for future reviews, be sure you include, even if it’s in your first entry, a table of contents or outline or something that shows all the topics and how they are related.
COMPENDIUM REVIEW 2: GENETICS: This is a very effective review. I like how you make little topical entries for each sub-topic with a well-selected graphic. To be exemplary, you would want more of an intro and conclusion that tie the entire topic together and more sources of detailed information. Also, please be careful about copying directly from a website without indicating in quotes that the words are not your own. I do like that you cite where your info comes from. Keep it up.
MICROSCOPE LAB: This is an effective write-up. Nice image, good definitions and a good introduction. To be exemplary, be sure you include a conclusion and some other references to the course material.
DRAGON GENETICS LAB: Please be sure you completely read the lab instructions. I am giving this the low baseline grade, but it doesn’t really qualify. You needed to at least define the terms that were given on the lab write-up instruction page. Also, you should include an introduction and conclusion that show you understand the topic and the significance of what you did online.
LAB PROJECT: BUILD A CELL: The lab projects are crucial and you must do them—worth 60 points or almost one third of the unit. I didn’t see this in your blog. Send me an e-mail when it is posted.
ETHICAL ISSUE ESSAY: GENETIC ENGINEERING: I didn’t see this in your blog. Please be sure you this short essay for an easy 10 points. Send me an e-mail when you’ve answered them.
Please don’t forget to do your peer color group feedback on their ethical issues essays—you’ll probably find it interesting to see some other blogs also. And get started on Unit II if you haven’t already. Let me know if you have any questions or concerns about this feedback or your grades which can be seen on the YC Blackboard site.
LF
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