When the skin is exposed to ultraviolet rays, the skin produces a molecule that is turned into Vitamin D.
Sun is the source of ultraviolet rays important for Vitamin D production. Due to this reason, in the case of Vitamin D deficiency, it is recommended by doctor's to absorb sunlight by skin. The Vitamin D production occurs specifically by UV B rays rays which lie in the range of 290-315 nanometer.
The chemical 7-dehydrocholesterol absorbs these rays and convert to previtamin D3. Further, previtamin D3 isomerizes to Vitamin D. Other than sunlight, Vitamin D can be taken through diet. The sources include seafood like fish, fish oil, dairy products, beef liver etc. Vitamin D is required for bone and teeth formation, muscle contraction, immune system etc.
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Home care providers must maintain records of the duties they perform and the hours they work. They also maintain records of the client's condition and any changes that should be brought to the attention of the client's family or physician.
I am not 100% sure but i have an idea for the first box, In the circulatory system, blood is pumped into veins that carry the blood to tissues in your body. I really hope this helped you and was correct.
Answer:
False.
Explanation:
A sprain is an injury to a ligament. When a sprain happens, one or more ligaments is stretched or torn. A strain is an injury to a muscle or tendon.
have enough sleep, workout for 30 minutes each day even if its a walk, make friends and get rid of any negative people around you
Explanation:
