Melanin is produced in specialized cells called melanocytes, but these do not behave in the same way for all people. Some people naturally produce less melanin, which means less pigment and lighter skin. Other people possess fewer melanocytes than normal, which also results in less overall pigment...
Albinism results from an individual having a defective gene that normally encodes the enzyme responsible for melanin production. Melanin is skin... Learn more about this topic: Homozygous Recessive Genotype | Definition, Traits & Examples from ...
Why does our body want to produce melanin after an injury? Because melanin helps protect the skin against future damage, mimicking an antioxidant by fending off oxidative stress and keeping the skin’s barrier strong. The downside is that excess melanin produces brown, tan, red, or purple ...
People with albinism often have white or very light blonde hair, although some have brown or ginger hair. The exact colour depends on how much melanin their body produces. Very pale skin that burns easily in the sun anddoes not usually tan isalso typical of albinism. Does albinism affect me...
When people who produce less melanin are overexposed to UV rays, it causes damage to the DNA in the upper layers of skin cells—resulting in a radiation burn, known as sunburn. Not everybody responds in the same way to sun exposure. In general, people with lighter skin, freckles, or nat...
How does obesity affect the integumentary system? How does melanin provide protection against skin cancer? How can massage impact the integumentary and the lymphatic systems? How does arthritis affect the integumentary system? How is heat lost from the body?
That sounds gross, but it does show you something very important about your immune system. When something dies, its immune system (along with everything else) shuts down. In a matter of hours, the body is invaded by all sorts of bacteria, microbes, parasites... None of these things are...
As a result, the body cannot remove heat from the body as well. Decreased sensation and sensitivity to pain The number of nerve endings in the skin decreases. Gray or white hair The hair follicles produce less pigment (melanin). Thinning or loss of hair Hairs, which must be replaced ...
How does a hair dryer generate such a strong gust of air in the first place? This model uses a small fan that looks like a hydraulic turbine (i.e. water wheel). Unlike the water wheel, which harnesses the potential energy of flowing water to generate power, the fan in a hair dryer ...
How does your brain keep track of everything you see? Although small in size, the eye is a very complex organ.Laurence Monneret / Getty Images It's no accident that the main function ofthe sunat the center of our solar system is to provide light. Light is what drives life. It's ha...