Melanocyte are cells that are situated in the lower layer of epidermis, which is known to be the outermost layer of the skin as well as in the middle layer of the eye. These cells are responsible for producing melanin, a pigment responsible for the skin color. Medium color skin has more melanin pigment than white skin and less melanin pigment than black skin. It is to be noted here that melanocytes comprise ten percent of cells.
The factor that is responsible for a person having a fair complexion is the activity level of the Melanocyte and not the number. It is to be stated here tha embryologically, it is the neural crest, from which the melanocytes have been derived.
Do you know that there is approximately 1000 to 2000 Melanocyte present in one square millimeter of skin? Though they vary in size, a typical Melanocyte is only 7 micrometers in length. The activity of the melanocytes is responsible for the skin color varyiong from one person to the other. An enzyme, tyrosinase, present in the body is required by melanocytes, in order to produce melanin pigment from amino acid tyrosine.
The melanocyte stimulating hormones can be described as a class of peptide hormones. The cells of the pituitary gland are responsible for the release of these hormones.
Melanocytes also has the capacity increase to a great extent in the embryo. Melanocyte cells are also responsible for hyperpigmentation among pregnant women. This condition is more evident on those areas, that have a tendency to get darkened easily, like areolae, nipples, inner thighs and armpits.Another common pigmentation during this time is the linea nigra, a dark line appearing on the abdomen.
|
|
Some pregnant women also experience melasma, a condition when the facial skin becomes dark. Acne is also another common problem, which arises due to under activity of the sebaceous glands. Heat rashes are also quite common among pregnant women due to the over activity of the sweat glands.
If you are pregnant and if you are experiencing any of these problems, then do not worry as these problems would not persist, after the baby is delivered. However, it is suggested to consult your doctor,.
The site pregnancyxl.com offers complete information on Melanocyte.
In order to know more about melanocyte, continue browsing the following links of pregnancyxl.com, which are:
|
