Melanocyte

have a healthy lifestyle. Melanoma is the worst kind of skin cancer. It appears when human cells called melanocytes become malicious and start growing faster than the usual. These cells develop a pigment called Malanin that is in charge of skin tone and hair color. Malanin also protects the skin from the solar radiation avoiding damage on the body. When skin is exposed to the sun, melanocytes produce more melanin as a defense against ultraviolet rays. When there is a constant…

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 the location where keratinocytes take a drastic change in their appearance and the process of keratinization…

Melanocytes are cells that are responsible for producing and creating melanin, and that is what makes us all so unique. People come in various different shades of color and the reason behind it is melanin. Melanin is the pigment that gives humans the different shades of color for their hair, skin and eyes. Melanocytes is located in the epidermis layer, which is why it is important that we have protection. Melanin is what protects our skin from the effects that one may encounter from the sun.…

A lot of people have moles. Sometimes they are born with them, and other times they develop them. Moles can be beautiful, depending on how big and where they are positioned. Most of the time, they are harmless. However, sometimes they can start off harmless and progress into cancerous lesions. This paper will focus on the number one tool for patients to recognize melanomas, and that is teaching. Teaching patients how to monitor and look for certain characteristics between melanomas and moles can…

that results in the loss of skin color in blotches on the body. This disease doesn’t just occur on the skins surfaces, but it can appear on the scalp causing spots of white blotches being seen in hair. Vitiligo occurs when there is damage to the melanocytes, which are cells that produce melanin. Melanin is the pigment…

The human body, just like animals, has evolved over time. One of the greatest biological adaptations of the humans is skin color. Today, there are 7 billion different skin tones since no skin color is identical. However, in Africa, 100 thousand years ago that was certainly not the case.[Bryce] The evolution of skin color over the past 100 thousand years is due to the combination of three factors: skin exposure, ultraviolet rays, and Vitamin D. [Jablonski and Chaplin] These factors attribute to…

and other foreign particles out of the respiratory tract. The appendages are largely consisted of fused keratinized cells. Chief regions of a hair are: shaft and root. Shape of the shaft determines the shape of the hair. Hair pigment is made by melanocytes at the base of the hair follicle. Different proportions of melanin lead to different colors (yellow, black, brown). They combine to produce all varieties of hair color. A decrease in melanin production results in gray or white…

accelerate aging of the skin. Both UVA and UVB destroy vitamin A in skin, which may cause further damage. UVB light can cause direct DNA damage. In defense, our body releases a pigment called melanin, which is produced by cells in our skin called melanocytes. Melanin absorbs ultraviolet light and dissipates it as heat. According to Gary Chuang, assistant professor of dermatology at Tufts University School of Medicine says,” Melanin is a natural sunscreen. When your body senses sun damage, what…

the epidermis, dermis and hypodermis. The epidermis is ectodermal in origin. It is relatively void of ECM except for the basal membrane and has a distinctive keratinized layer produced by keratinocytes. Other artifacts of the epidermis include melanocytes, hair follicles, sebaceous glands, and sweat glands; embryonic stem cells and earlier progenitor cells can be used to regenerate hair follicles and sweat glands . The dermis is of mesodermal origin and is has an extensive extracellular matrix…

There are many types of skin cancer but the three main types of skin cancer which are basal cell carcinoma, squamous cell carcinoma and melanoma. Even though there are three major types of skin cancer this essay will be focusing on Melanoma. Before I can discuss how Melanoma works we have to understand the anatomy of the Skin tissue. In the human body our skin is the protection between the external environment and internal organs. The human body skin can be different in the thickness of the…