BIOL273 Lecture Notes - Lecture 18: Sagittal Plane, Partial Pressure, Pericardium
Bones and muscles of the thorax allow for ventilation inspiration and expiration. These two parts make the ventilation cycle. These are all skeletal muscles controlled by the somatic motor neurons. But if you, for instance, blow up a balloon or blow a candle, you do need additional musculature to be able to very quickly, forcefully move the air our of the body (an active process) versa) Summary: the three components: we need all three systems to work together, airways keep the air suitable for when it reaches our capillaries for gas exchange for diffusion, to move the air around, we need the pumping system. 5-2 gas laws and ventilation: air is a mixture of gases. Total pressure of a mixture of gases = sum of the partial pressure of individual gases: atmospheric air is a mixture of gases, not 100% 02, the gas we need is 02.