Trypanosomiasis refers to a group of diseases caused by Trypanosoma There are two types of trypanosomiasis that affect humans, they are divided according to their geographical location: African trypanosomiasis, or sleeping sickness, is caused by Trypanosoma brucei parasites in sub-Saharan Africa and is transmitted by the tsetse fly? (Glossina).
Specilized cells in the epidermis called melanocytes produce melanin, a dark pigment that provides skin color. Melanin absorbs ultraviolet radiation in sunlight and preventing mutations in the DNA of skin cells and other damaging effects.ifferences in skin color result from differences in the amount of melanin that melanocytes produce and the distribution and size of pigment granules. Skin color is genetically determined.
The cells producing the pigment responsible for skin color are called what? Melanocytes Cells of the skin's epidermis that participate in the immune response to microbes are called what? Langerhans cells The only layer of the epidermis that contains stem cells capable of continued cell division is what? Stratum Basale The clear layer of the epidermis that is only found in the thick skin located in areas such as the fingertips, palms and soles is called what? Stratum Lucidum What are the pigments that contribute to the color of an individual's skin?