Melasma Overview. Patches of melasma are darker than other areas of skin because they have more pigment. The cells that produce pigment in the skin are called melanocytes. Ultraviolet radiation, or UV rays, from the sun stimulate melanocytes to produce pigment.
The human testicle .The two muscles that regulate the temperature of the testes are the dartos andcremaster muscles:â¢ Dartos Muscle The dartos muscle is a layer of smooth muscle fibers in the subcutaneous tissue of thescrotum (surrounding the scrotum).
This method is most useful with women who have a regular 30-day menstrual cycle. The Basal Body Temperature test measures the change in temperature that occurs after ovulation, making it easier to predict when ovulation will begin on your next cycle.his method is most useful with women who have a regular 30-day menstrual cycle. The Basal Body Temperature test measures the change in temperature that occurs after ovulation, making it easier to predict when ovulation will begin on your next cycle.