Choose one or more legend items in the Contents pane. On the Format tab on the ribbon, choose Legend Item from the drop-down menu in the Current Selection group. This will allow you to work with the entire item. In the Text Symbol group, choose a new font from the drop-down menu. This will update the font type for layer names, headings, labels, and descriptions of the selected items. Go back to the Current Selection group and choose Descriptions from the drop-down menu. You are now only working with descriptions.
The intercostal muscles are a group of 22 pairs of tiny muscles found between the ribs. These muscles play a vital role in the movement of the chest during breathing. They also help to solidify the thoracic region and protect the lungs.
The ribs protect your heart and lungs so  they will not get bruised. They are part of the skeletal system,  but help your respiratory system to function.   This is how you say it in order  nose/mouth,trachea,bronchus,lungs,bronchioles and aveoli (air  sacs).  The human respiratory system is made up of the trachea, bronchi,  bronchioles, lungs, and diaphragm.