Essay on Anatomy and Physiology Lab

Those who may spend the vast majority of their week indoors but go to the beach on the weekends or outside on vacations are much more likely to develop a skin cancer than those who spend regular time outdoors. There are also risk factors that put some people at a higher risk for developing skin cancers, as well. These include:

The third factor that plays a major role in causing skin cancer is the Ozone layer. It helps protect people from ultraviolet radiation. However, the ozone layer is shrinking and this is due to man-made products like sprays and combustion of cars that are emitted in the atmosphere. This process is allowing more ultraviolet penetration to the earth thus increasing risk of skin cancer (Bair, 1991, P. 367,368). Ultraviolet radiation are the chief causes for skin cancer because the UV radiation

Heredity also plays a role in the development of cancer. If a person’s relatives have a history of cancer, then that person has a higher risk of developing cancer. Genetic variations, particularly those influencing how the body responds to carcinogens, may create a greater vulnerability to cancer.

These brown coloured cancerous growths develop when unrepaired DNA has committed damage to the body’s skin cells. It is known that it is the most commonly triggered by vigorous amounts of sunshine, over excessive use of tanning bed and UV lights which result in making mutations in the skin that produces the skin cells to over multiply at a quick rate which can eventually form nasty tumours.

What is the name of the process by which cancer cells break off of tumors and spread to other parts of the body?

Although there are several types of skin cancer, the most aggressive form is melanoma. This cancer of the skin involves mass replication of the pigment producing melanocyte cells, which are located in the epidermis, below the basal layer. There are several factors involved with the onset of melanoma including, exposure to ultraviolet rays, genetic predisposition, numerous nevi (moles), immunosuppression, and environmental exposure to carcinogens.

Have you ever felt the “false sense of security that [you] may not feel under direct sunlight” from a tanning bed (Jeffrey)? Your body relaxes, you feel serene, and you get a golden glow. Some teens strive for this feeling...and the tan. Tanning is the skin's response to injury, according to Arielle Kauvar, M. D. The exposure of UV rays over time can cause skin cancer. Skin cancer is the growth of abnormal growth of skin cells that forms in the tissue of the skin (Skin Cancer). Melanoma, the most dangerous type of skin cancer, can come from UV rays. From 1998- 2008, the number of cases of Melanoma has increased by about

Indoor tanning exposes users to two types of UV rays, UVA and UVB. UVA rays are suspected to be linked to the development of melanoma and other skin cancers. Worldwide, there are more skin cancer cases due to indoor tanning than there are lung cancer cases due to smoking. Tanning causes damage to the DNA in our skin cells, which leads to abnormal growth that could be benign or malignant. Tanning also weakens our immune system which compromises our body's capability of fighting against malignancies and cancer cells. There are two types of skin cancer that can be caused by tanning- basal cell and squamous cell carcinomas. These types are treatable with early detection. Development of melanoma can be fatal."In the US alone, 419,254 cases of skin cancer can be attributed to indoor tanning. Out of this number, 6,199 are melanoma cases" (Skin Cancer Foundation). It has been found that younger tanners are at higher risk of developing skin cancers from tanning, but with the high levels of UV exposure, any tanner should take

Melanoma is a malignant condition arising from melanocytes in the basal layer of the skin. Melanocytes are the cells that produce melanin, which gives skin its pigmentation and shields the deeper layers of skin from the damaging effects of ultraviolet radiation. When skin is exposed to ultraviolet radiation, melanocytes increase their production of melanin, which generates darker pigmentation of the skin. Ultraviolet radiation stimulates malignant changes within the melanocytes by mutating DNA, stimulating cutaneous growth factors, decreases immune defenses, and promotes species of melanin that cause DNA impairment and suppress apoptosis. The abnormalities caused by ultraviolet radiation in the melanocytes predispose it to

3. Unlike basal cell carcinomas, squamous cell carcinomas can metastasize, or spread to other parts of the body.

This is why BRCA-positive people have a higher risk for cancers. It also explains why they get them earlier in life. They were born already having one mutated BRCA allele ready to fuel cancer cells.

This ability of malign cancer to make their way across basement membrane and into blood vessels is what makes cancer so fatal and impossible to be cure by surgery alone. The result of metastasis and invasion in normal tissue by cancer cells are often seen as one of the distinctive features of malignancy (Ruoslahti 1996). Even though the ability of invasion and metastasis are one of the hallmarks for cancer, these abilities are not unique to cancer cells as it can also occur during the early development stage of the embryo, in healthy organisms and in many noncancerous diseases (Mareel & Leroy 2003). It does not matter whenever the organism has developed benign or malign cancer, all cancer cells have the ability to disturb the normal cell cycle and threaten the survival of the organism.

The first similarity is that just like malignant tumors, benign tumors can also be quite large. A common mistake patients often make is confuse benign tumors with malignant tumors because of the size. Although malignant tumors are usually larger than benign tumors, that alone does not make the difference. In fact, a benign tumors weighing over a hundred pounds have been removed. An example of a large benign tumor is a 32-year-old man from Vietnam who survived a 12-hour operation in which a massive 198-pound benign tumor from his right leg was removed at France-Vietnam Hospital (FV) on January 5, 2012.2 The second similarity is that both malignant and benign tumors recur locally, to be more specific, the location where the recurrence of the tumor most likely happens. To elaborate further, both benign and malignant tumors have the ability to reappear near or in the same area where the previous tumor was located. For instance, recurrent breast tumors are tumors that have come back in the same breast or chest wall after the treatment for a period of time when the tumor couldn't be detected.3 The third and final similarity is the danger both malignant and benign tumors pose to the health of the patient. Similar

The scariest fact found when researching the effects of exposure to the sun’s harmful rays is that ninety present of skin cancer is caused by it. Doesn’t knowing the facts make you want to shield yourself and your children by never going outside again? Unfortunately, that is just imposable but educating our youth is the first step to prevention since most sun exposure is achieved before the age of eighteen. According to the American Academy of Dermatology, one out of every five American’s will develop skin cancer. The three main types of skin cancer are basal cell carcinoma (BCC), squamous cell carcinoma (SCC), and malignant melanoma. Basal cell carcinoma (BCC) is the most common

Early diagnosis provides the best hope many have in beating cancer. Unfortunately, this is not the end of the fight for many cancer patients. Primary tumors may be successfully treated early, only to later discover they have metastasized to other areas of the body.