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Cancer

Cancer is a disease that happens when cells inside the body start multiplying out-of-control and turn into lumps called tumorsthat kill healthy neighboring cells. Some examples are kidney cancer, skin cancer, lung cancer, colon cancer, and lymphoma.

However, cancers of the blood such as leukemia do not form tumors. No matter the type of cancer, the effects are the same. First, cancerous cells DO NOT function the same as regular cells therefore, they don’t contribute to your survival. Second and most importantly, cancer cells inhibit the function of healthy cells, stopping them from working property.

But not all tumors cause cancer!

There are two types of tumors:

  1. Benign tumors: Do not grow forever and do not move around in the body. They form lumps but are not normally dangerous and can usually be taken out by surgery.

  2. Malignant tumors: Are made from cancerous cells that can divide forever. These cells can move in the blood to different parts of the body (a process called metastasis)where they divide and grow, making more secondary tumors. These tumors destroy healthy tissues around them. When metastasis happens, the cancer becomes very serious and difficult to treat. 

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What causes cancer?

Normal cells divide to make more copies but eventually stop. This is because they have DNA inside that tells them to stop. However, the DNA of cancer cells isdamagedand so they don’t give the instructions to stop growing and instead, the cells will divide forever, forming tumors. There are three main causes of cancer.

  1. Hereditary: Some types of cancer are inherited, meaning that if someone in a family had or has cancer like a grandparent or parent for example, then there is a chance that the damaged DNA will be passed on to their children.

  2. Carcinogens: Are thingsthat we either ingestor are exposed to that damage our DNA and cause cancer. These include tobacco (smoking), asbestos, radiation such as gamma and x-rays, the Sun, and chemicals in car exhaust.

  3. Viruses such as HPV, hepatitis B and C, and Epstein-Barr virus have been linked to different types of cancer.

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Signs and Symptoms

You should always pay attention to the health of your body! If someone sees or feels something new like a lump or a patch of skin with a weird shape and color, they should speak to their doctor! A tumor can affect different parts of the body so how you feel depends on the location of the tumor.

For example:

Brain Tumor Symptoms: Since your brain controls how you see, hear and walk, some common symptoms of brain tumors are:

  • vision, hearing and balance problems.

  • changes in mental ability.

  • seizures, nausea and changes in your ability to smell.

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Carcinogens –Something that can cause cancer.

Heredity - The passing of traits like hair color, height, etc. from parent to child.

Ingest – something you eat, drink, or breathe into your body.

Nausea –The feeling that you want to throw up.

Lung Tumor Symptoms: Since your lungs control your breathing and breathing allows you to be active, some common symptoms of lung tumors are:

  • a cough that won’t go away or brings up blood.

  • chest pain that gets worse with deep breathing, laughing or exercise.

  • shortness of breath.

  • feeling weak.

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Diagnosing Cancer

There are different steps to diagnose cancer. First a doctor will ask to know about the patient’s family medical history. Then a patient will do a physical exam and lab tests. A doctor will use imaging tests like X-rays, computed tomography (CT), magnetic resonance imaging (MRI) or other tests to see the exact location and size of the tumor. Then a biopsy is performed, which means a sample of the cells is removed from the tumor and studied under a microscope to check for cancerous cells. These tests will determine whether the tumor is benign or malignant and what stage the cancer is at.

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Prevention

To reduce your risk of getting cancer, make sure to avoid carcinogens as much as possible! This means always using sunscreen when you are exposed to the sun, and never smoking! Also, make sure you are always aware of your body and attend your yearly checkups so that you can detect the cancer early. Lastly, ask your parents about your family medical history, this information is important for your doctor to know!

Treatment

There are three main treatments for cancer including: chemotherapy, radiation and surgery. Chemotherapy and radiation are meant to kill the cancerous cells while surgery is physically cutting them out of the body. Almost all cancer treatments use a combination of the three to ensure all the cancerous cells are eliminated.

The earlier the disease is discovered and treated, the higher the chance of curing the disease and the person surviving.The stages of cancer go from 0 to 4, with higher stages being more difficult to cure. Stage 1 tumors are mostly curable with surgery and treatment while stage 4 cancer is usually not treatable.

Biopsy – A small amount of tissue is removed and looked at under a microscope.

Chemotherapy–Using chemicals to poison and kill the cancer cells.

Radiation – High-energy rays are used to kill cancer cells.

Reading Comprehension Questions:

  1. What is cancer?

  2. What is a tumor?

  3. What are the two types of tumors? Are they both cancerous?

  4. What is it called when cancerous cells spread to different parts of the body?

  5. Why do cancer cells divide and multiply uncontrollably?

  6. What are the three main ways that DNA can become damaged and causes cancer?

  7. What kind of treatment will a doctor recommend for cancer?

  8. Why is it important to discover cancer early?

Extension Questions:

  1. Why do cancer treatments usually use two or three treatments and not just one?

  2. All cancer treatments come with side effects. Research a) the main side effects people suffer from during cancer treatment. b) what causes these side effects.

  3. Summarize what you have learned about Cancer in 150-200 words.

References

American Cancer Society(2015, March). Cancer Staging. Retrieved February 26, 2016,http://www.cancer.org/treatment/understandingyourdiagnosis/staging

Bianconi E, P. A.-A. (2013, December). An estimation of the number of cells in the human body. Annal of Human Biology, 40(6), 471. Retrieved February 26, 2016, fromhttp://www.ncbi.nlm.nih.gov/pubmed/23829164

Cancer Research UK. (2015, March). Can Cancer Be Prevented? Retrieved February 26, 2016, fromhttp://www.cancerresearchuk.org/about-cancer/causes-of-cancer/can-cancer-be-prevented

How Stuff Works Science. How MRI works.Retrieved February 26, 2016, fromhttp://science.howstuffworks.com/mri.htm

Medical News Today (2015, September, 2015). Cancer: Facts, Causes, Symptoms and research. Retrieved February 26, 2016, fromhttp://www.medicalnewstoday.com/info/cancer-oncology/images/what-is-cancer.jpg

National Cancer Institute. (2015, February). What Is Cancer? Retrieved February 26, 2016, fromhttp://www.cancer.gov/about-cancer/what-is-cancer

Style Pinner. List Of Top Cancer Cell Division Images. Retrieved February 26, 2016, fromhttp://www.stylepinner.com/cancer-cell-division/Y2FuY2VyLWNlbGwtZGl2aXNpb24/.

Torpy JM, Lynm C, Glass RM. Brain Tumors. JAMA. 2005;293(5):644.Retrieved February 26, 2016, fromhttp://jama.jamanetwork.com/article.aspx?articleid=200291

WebMD. Cancer Health Center. Retrieved February 26, 2016,http://www.webmd.com/cancer/

Scientific Calculators

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rechargeable bulbs

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Greeting Cards

Surprise your loved one with a greeting card.

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Muhammad Ali

At the age of 12, Ali discovered his talent for boxing through an odd twist of fate. His bike was stolen, and Ali told a police officer, Joe Martin, that he wanted to beat up the thief. "Well, you better learn how to fight before you start challenging people," Martin reportedly told him at the time. In addition to being a police officer, Martin also trained young boxers at a local gym.

Ali started working with Martin to learn how to box, and soon began his boxing career. In his first amateur bout in 1954, he won the fight by split decision. Ali went on to win the 1956 Golden Gloves tournament for novices in the light heavyweight class. Three years later, he won the National Golden Gloves Tournament of Champions, as well as the Amateur Athletic Union's national title for the light-heavyweight division.

After his Olympic victory, Ali was heralded as an American hero. He soon turned professional with the backing of the Louisville Sponsoring Group. During the 1960s Ali seemed unstoppable, winning all of his bouts with majority of them being by knockouts. He took out British heavyweight champion Henry Cooper in 1963 and then knocked out Sonny Liston in 1964 to become the heavyweight champion of the world.  Woah! No one had seen a champion like Ali before! 

Often referring to himself as "the greatest," Ali was not afraid to sing his own praises. He was known for boasting about his skills before a fight and for his colorful descriptions and phrases. In one of his more famously quoted descriptions, Ali told reporters that he could "float like a butterfly, sting like a bee" in the boxing ring.

Assignment  1

 

Instructions:  Identify three examples of the following:  noun, pronoun, verb, preposition (par 2), interjection (para 3)  and coordinating conjunction (par 3) and adjective. Obtain your answer from the passage above. [12pts]

MUHAMMAD ALI

Denotation:  refers to the dictionary definition of a word

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