over 1 million nursing students trust simple nursing to help them pass nursing school and the endx so head over to simplenursing.com YouTube to join them in their success hi everybody Dr Mike here in this video we're going to take a look at parts of the respiratory tract now we're going to follow the pathway of air from being inspired from the outer atmosphere all the way down into our lungs and have a look at some of the major anatomical compartments or structures that that air needs to move through what we call the conducting pathways first of all when air is first inspired it enters something called the nasal cavity now once it enters the nasal cavity it moves to the back of the throat and that area we call the FX and there's actually three parts to the FX so I'm going to highlight this entire area here as the FX now sometimes we can Inspire air through the mouth and so obviously that's going to go through the oral cavity now with the FX we've got the nasal portion which we call the naso farx we've got the oral portion which we call the Oro farx and we've got the next portion here called the larx and this part of the back of the throat just where the larynx is is called the lingo ferx which means that the next component is called the larynx now what we've just highlighted here from the nasal cavity to the 3 aspects of the FX to the larynx is what we call the upper respiratory tract now this is important clinically because you've heard of Upper and Lower respiratory tract infections so obviously upper respiratory tract infections involve these anatomical components so what do lower respiratory tract infections refer to well we then go to the trachea air passes through the tra and then the Crea splits and this is known as a bif it Bates left and right and once it Bates it turns into the left and right main stem like the stem of a tree broni so these are called broni so I'm just going to label one but we know we're referring to both broni looking to cut your study time in half head on over to simplenursing.com youube you can sign up for free and get access to all of this