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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The Coronal Plane is what divides.
Answer:
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Answer:
Bronchitis
Explanation:
Bronchitis is an inflammation of the lower airways. It happens when the bronchi, located between the lungs, become inflamed due to an infection or some other cause. According to its duration and etiology, a distinction is made between acute bronchitis, short duration, and chronic bronchitis, long duration and frequent relapses.
Symptom
:
Cough with mucus, sometimes bloody. If the mucus of bronchitis is yellowish green and is accompanied by fever, it is most likely that there is bacterial infection.
Inflammation of the bronchi (ramifications of the airways between the trachea and the lungs).
Inflammation (edema) of the bronchial walls.
Obstruction of the alveoli.
Beeps or wheezing.
Bubbling (referred to the sound effect that can be seen when the patient is auscultated with a stethoscope).
Respiratory distress
General discomfort.
Fatigue.
Fever, usually low.
Respiratory difficulty aggravated by exertion or mild activity.
Wheezing
Even after acute bronchitis has resolved, a dry and bothersome cough may develop that lasts for several weeks.
