What protects a human being from external danger? A car 's seat belt? A helmet? Or our very own organ known as the skin? The skin is one of the most amazing organs in the human body. Skin is made up of specific cells and tissues to act as the boundary between you, me and the world. However, there are some factors that we have to pay attention to regarding our skins. The physiology of Skin will give an in dept explanation and description of its structure, functions, and diseases. The skin is the…
2009, the World Health Organization even bumped up tanning beds from “probably carcinogenic to humans” to “carcinogenic to humans”. Basal cell carcinoma (BCC), squamous cell carcinoma (SCC) and melanoma are all skin cancers that have been linked to UV radiation from tanning beds. BCC is an abnormal and uncontrolled growth or lesion that forms in the skin’s basal cells. These growths or lesions often look like red patches, open sores, or pink growths. Most of the time BCCs never spread to other…
single row of stem cells that are constantly going through mitosis. Every time a cell divides, it pushes the more mature keratinocyte up the epidermal layer to produce more keratinocytes (Marieb and Hoehn, pg.153). The stratum spinosum layer contains several cell layers which are sustained by desmosomes. The stratum spinosum also contains keratinocytes, melanocytes, and Langerhans cells which are the most abundant in this layer. The stratum granulosum is a very thin layers of cells. It is also…
Understanding Skin Conditions By Fred A Selby | Submitted On July 16, 2013 Recommend Article Article Comments Print Article Share this article on Facebook 1 Share this article on Twitter 1 Share this article on Google+ 1 Share this article on Linkedin 1 Share this article on StumbleUpon 1 Share this article on Delicious 1 Share this article on Digg 1 Share this article on Reddit 1 Share this article on Pinterest 1 Expert Author Fred A Selby Skin Conditions are not completely understood,…
abnormal growth of cells within the skin. There is the basal cell carcinoma that starts off in the basal cells, squamous cell carcinoma that forms in the epidermis, and the malignant melanoma which happens when the melanin has become cancerous. Many people around the world have been diagnosed with one of these cancers and has suffered from how it has caused their bodies to change drastically. The basal cell cancer begins in the basal cells because of a rapid production of cells from too much…
Squamous cell carcinoma is characterized as uncontrolled growths located in the very thin, flattened cells in the epidermis. SCC can range from open sores to warts in terms of identification. It is mainly caused by "cumulative UV exposure over the course of a lifetime" (Squamous Cell Carcinoma (SCC), 2012), tanning beds with their intense UV lights can also lead to squamous cell carcinoma. Prevention of squamous cell carcinoma is common with other type of skin cancer; cover up when outside,…
Merkel-cell carcinoma is a rare type of malignant skin cancer or disease that grows out of control. It most often starts in areas of skin that is being exposed to the sun, especially the head, neck, arms, and legs. This type of skin disease tends to grow quickly and metastasize at an early stage; this most often become more developed in older people. Metastatic Merkel-cell carcinoma is often deadly and there is no effective treatment. Findings made by a physician-researcher of University of…
Melanoma incidence has markedly increased in recent decades. It represents 3–5% of skin cancers, but it is responsible for 75% of all skin cancer deaths1. Approximately 10% of melanoma cases report a relative affected with melanoma, and a positive family history is associated with an increased risk of developing melanoma. The heritable (germ line) variants which contribute to melanoma susceptibility vary in terms of risk from common relatively low penetrance genes to rare high penetrance genes1.…
The American Cancer Society estimates that skin cancer is the most prevalent of all cancers with over 2 million cases of non-melanoma skin cancer each year and 75,000 melanoma cases in 2012**. Melanoma is one of themost serious consequences of skin cancer where melanocytesproliferate actively with enhanced accumulation of melaninpigment leading to hyperpigmentation and tumor formation. Up-regulated levels oftyrosinase enzyme appear to be correlated to with greater production and accumulation of…
caused by damage to DNA. DNA gets damaged by ultraviolet rays, the sun. Skin cancer forms when cells divide quickly and unevenly. Skin cancer risks get higher when you have exposure to ultraviolet rays. There are 3 types of cancer: Basal Cell Carcinoma which is the most common type of skin cancer, it is the least harmful of the three. Squamous Cell Carcinoma is a more serious cancer than Basal Cell Carcinoma, this types of cancer can grow and spread all over the body. Malignant Melanoma is the…