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Health 11-3-12

What is the layer cells with no blood vessels? Epidermis
What is the colored pigment, helps protect against uv rays by absorbing them? Melanin
What are harmful radiation produced by the sun? UV Radiation
What does U.V mean Ultra Violet
What develops hair? Hair Follicles
What is the body's cooling system? Sweat glands
What keeps skin soft? Sebaceous glands
What are the oilly secretions that are waterproof? Sebum
Tiny oils on skins surface? Pores
What is the layer of Fat? Subcutaneous
Why do you feel hotter on a day when the humidity is high than you do on a less humid day? Because on hot days or whenever involved in strenuous activity, large drops of perspiration often form on your skin cooling your body by drawing away heat when the perspiration evaporates.so in humid weather ,perspiration also collects next section
On the skin faster than it evaporates as a result you feel hotter ona humid day than on a less humid day.