A thin single sheet of endothelial cells lines the walls of all blood vessels.
For the Saline Solution: <span>Put one cup of water and ½ teaspoon of salt into the pot. Put the lid on.Boil for 15 minutes with the lid on (set a timer).Set the pan aside until cooled to a room temperature.<span>Carefully pour the salt and water (normal saline) from the pan into the jar or bottle and put the lid on.
To clean the piercing you put a cap-full of the saline with the piercing in it and leave it for about 30 to 45 minutes, then dry it off with a paper towel.</span></span>
After you take a breath the air travels through your windpipe and into the lungs
<span>Answer: b. credibility, risks, and costs
Considering if the brand or manufacturer of the food that enters your system or your doctor's competence and credibility is important to avoid harm and possible scams. Being aware of the risks of certain products and procedures will help one be prepared. Also, considering whether or not the cost is worth it is an important step too. </span>
I think the answer is nervous system and muscular system work together but i could be wrong.