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 a collection of organs whose primary function is to take in oxygen and expel carbon dioxide. The major organs of the respiratory system are the lungs, nose, pharynx, and throat.he Muscular system is the organ system whose primary function is movement and flexibility. The muscular system is made up of the muscles that let you move. There are three kinds of muscle in your body. Smooth muscle moves food through the digestive system.