A normal 22-year-old man breathes in as much air as he can and then exhales as much air as possible. The lung volume at maximum inspiration is 6.0 liters, and the lung volume after maximum expiration is 1.0 liter. His tidal volume at rest if 0.5 liter, and his functional residual capacity is 3.5 liters. What is his vital capacity?

what statement best describes the difference between the sympathetic and parasympathetic nervous systems?

the sympathetic nervous system prepares the body for intense physical activity and is often referred to as the fight-or-flight response. the parasympathetic nervous system has almost the exact opposite effect and relaxes the body and inhibits or slows many high energy functions.