Its main function is to act as a barrier to protect the body from the outside world. It also functions to retain body fluids, protect against disease, eliminate waste products, and regulate body temperature.
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I would clarify to her that it is her decision, and hers alone. If she is truly worried she might fall as a victim to the disease and has the money to afford the testing that she should most definitely go through with the testing
Blood carrying carbon dioxide is sent from the heart to the lungs from the pulmonary artery
You should visit the doctor. SO then they can give you medicine to feel better.... right...