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.
Under most conditions, the partial pressure of carbon dioxide controls the rate of respiration. The most important function of breathing is gas exchange (of oxygen and carbon dioxide). Thus the control of respiration is centered primarily on how well this is achieved by the lungs.There are four main centers in the reticular formation and other parts of the brainstem that regulate the respiration rate.Redirected from Control of respiration). Control of ventilation refers to the physiological mechanisms involved in the control of physiologic ventilation, which refers to the movement of air into and out of the lungs.