Score is an old word for the number 20. It is used in the famous expression from the Gettysburg Address: Four score and seven years ago.... = (4*20+7)years = 87 years. And in the Bible: âthree score years and tenâ meaning: âseventy years oldâ (3*20+10) (Psalm 90). This was thought to be a normal life span.
It may surprise you to know that your respiratory system does a lot more than just coordinate the oxygen that goes in and out of your lungs. Your respiratory system works with the muscular, skeletal and circulatory systems of your body in order to help you speak, smell and breathe.
The respiratory system is the group of tissues and organs in your body that enable you to breathe. This system includes your airways, your lungs and the blood vessels and muscles attached to them that work together so you can breathe.The respiratory system's primary function is to supply oxygen to all the parts of your body.It accomplishes this through breathing: inhaling oxygen-rich air and exhaling air filled with carbon dioxide, which is a waste gas.his system includes your airways, your lungs and the blood vessels and muscles attached to them that work together so you can breathe. The respiratory system's primary function is to supply oxygen to all the parts of your body.