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Health 11-3-12
Question | Answer |
---|---|
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. |