Adam Sandler Talks Getting Fired From âSNL,â Bad Reviews, and His Desire to Play a Villain Marlow Stern September 11, 2014. When I met him, on the eve of the first debate, he was dressed in a natty gray suit and was the picture of serenity. Behind the Scenes With a âSite Agentâ: The Secret Serviceâs Hardest Job Marc Ambinder October 1, 2014. She continued to encourage me, with a serenity and strength that was like nothing I had encountered. The First American: Excerpt from Henry Crumptonâs âThe Art of Intelligenceâ Henry A. Crumpton May 13, 2012. His new book is Nerve: Poise Under Pressure, serenity Under Stress, and the Brave New Science of Fear and Cool.
Report Abuse. that's because it is a respiratory surface and theoretically, must be moist. the actual reason is so that the oxygen can be dissolved in that moisture and absorbed, thus gaseous exchange.trixc Â· 7 years ago. Thumbs up.xygen is what the lungs are trying to absorb, but at the same time the lungs function as something of a barrier to solids. The membranes of the epithelial and endothelial cells don't pose a barrier to the movement of this oxygen and the carbon dioxide that needs to be exhaled.
Pulmonary Ventilation or breathing has two phases. Inspiration or inhalation moves air into the lungs, and expiration or exhalation moves are out of the lungs. The lungs are enclosed within the thoracic cavity. Thus changes in the shape and size of the thoracic cavity result in changes in the air pressure within that cavity & in the lungs. This difference in air pressure causes the movement of air into and out of the lungs. Air moves from an area where pressure is high to an area where pressure is lower. Respiratory muscles are responsible for the changes in the shape of the thoracic cavity that causes the air movements involved in breathing. Inspiration occurs when the chest cavity enlarges. As the thorax enlarges, the lungs expand along with it, and the air rushes into them and down into the alveoli.