Dark spots that appear on your mouth or lips have severalcauses. By far, the most common cause is known as a melanotic macule or non-cancerous hyperpigmentation of a mucous membrane. This occurs when one of your mucous membranes produces more pigment (melanin) than typical. Your lesion may ...
Our skin color is determined by a pigment called melanin, and while everyone has melanin (both fair and dark-skinned people), it comes in different forms and ratios. The two forms of melanin are calledeumelanin and pheomelanin. Eumelanin comes in primarily brown and black hues, while pheomela...
Melanin is a pigment present in most organisms. In humans, skin, hair and eye color are determined by the melanin pigment. It also acts as a protective agent for the skin. Melanin is produced by melanocytes. When there is damage to melanocytes, it can result in melanoma tumors....
The vixen, commonly known as a silver fox, is a melanistic form of the brown animal. And if you're wondering what 'melanistic' means, it is basically the opposite of albinism when dark-colored pigment melanin is developed in the skin, thus making fur of these vixens black. ...
Identify the structure: Site of melanin formation. (a) Explain what happens to the melanocytes as skin ages. (b) What happens to the blood vessels of the dermis? Why is the stratum spinosum important in maintaining the integrity of the skin?
What is Melanoma? Melanomais mostly referred to ascancerof the skin, but this might not always be the case. It begins from the melanocytes, the cells that produce the pigment melanin, which gives the skin its color along with hair and eyes too. Melanocytes also form moles, which is the ...
Melanin's purpose has nothing to do with human vanity and everything to do with protecting the organism. UV radiation from the sun is a well-known carcinogen, and in high enough exposures can lead to a number of related types of melanoma, which are malignancies of the skin. Melanomas can...
melanin and cause the skin to tan. This also happens when skin is exposed to other forms of ultraviolet light (such as in a tanning booth). If the skin receives too much ultraviolet light, the melanocytes may begin to grow abnormally and become cancerous. This condition is called melanoma....
This is the body’s inflammatory response in situations requiring repair and is a result of dilating blood vessels. The skin will then start to lose moisture and hydration, which will be apparent with a feeling of tightness. Slowly, skin cells will start to thicken and melanin pigment...
What physical traits are genetically passed down from a single gene? Eye color is genetic. Eye color is also based on how much melanin you have, which determines how much color pigment is deposited in your iris. Just like skin color and hair color, our genes give us a natural color, but...