Normal lung sounds4/17/2024 Rales or crackles is a sound that is a discontinuous sound that is like a milkshake being sucked up through a straw, or popcorn popping in a popcorn popper, or like aerial bombs going off on the 4th of July, Thoracic Geography : sternocostal margins, over the verbral column between the scapulae.The Bronchovesicular Breath Sound has the following characteristics : Sound Characteristics : low pitched, soft rustling sound.Thoracic Geography : everywhere on the thoracic wall.An I:E Ratio : 1:0 or 1:1/4 with no pause in between inspiration & expiration.The Vesicular Breath Sound has the following characteristics : Thoracic Geography : over the manubrium of the sternum.An I:E Ratio : 1:1 or 1:1 1/4 with a pause in between inspiration & expiration.The Bronchial Breath Sound has the following characteristics : Indication : pneumonia, atelectasis, fluid infiltration.Sound Characteristics : high pitched, tubular, hollow sound.Thoracic Geography : over the trachea on the throat.An I:E Ratio : 1:1 with a pause in between inspiration & expiration.The Tracheal Breath Sound has the following characteristics : And that hard breathing through a narrow passageway is what creates the sound we know as wheezing.Click On The Link To Hear The Introductory Message You have to work to breathe, especially to breath out. The problem with that is when your bronchioles are constricted and swollen and has mucus in them, that narrow little opening is hard to breathe through. When they're hyper-alert and they respond to something that's not truly dangerous. Asthma happens when your airways are hyper-responsive. And if it's still there, still irritating, mucus will begin to be secreted to be able again to capture and protect you from those toxins. Inflammatory stuff to help protect you from those toxins. If that toxic cloud is still there, to protect your delicate tissues deep in your lungs, swelling of the lining will happen. The first thing that will happen is the muscles around the bronchioles will tighten, will constrict down almost like a boa constrictor, and you get the tight airways. Now if you happen to walk into a cloud of something that's toxic, your body is going to respond instantly to try to protect you. And those bronchioles are where the wheezing happens. It's almost like a tree's branches branching out. And from there they break into a whole bunch of little, smaller bronchioles. When you breathe in, the air comes through your nose or mouth, through the big windpipe and breaks into 2 big bronchi, one into each lung. Well to understand that, first let's all take a deep breath together (inhales). Alan Greene and I want to talk with you for a moment about how to tell the difference, what causes wheezing anyway, and when is it healthy and when is it not. Wheezing can be a normal healthy response to an unhealthy environment. And that hard breathing through a narrow passageway is what creates the sound we know as wheezing.
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