welcome back everybody inside the anatomy lab today we are diving into the fascinating world of breathing focusing especially in the movements of the diaphragm and its supporting muscles let's take a closer look at how the diaphragm actually moves within our body at first glance the motion of the diaphragm reminds of a jellyfish that is gracefully gliding through water just like the pulsations of a jellyfish that propels itself forward the diaphragm contracts and relaxes mically to facilitate breathing as you can see when we inhale the diaphragm contracts and flattens moving downward towards the abdominal cavity conversely when we exhale the diaphragm relaxes and returns to its Dome likee shape speaking of the Dome maybe you have realized that the Dome of the diaphragm is asymmetrical this variation in height is caused by the presence of the liver on the right side of the body the liver occupies a significant portion of the upper right quadrant of the abdominal cavity pushing up against the diaphragm therefore the right side of the diaphragm is pushed higher than the left I've read that the diaphragm can rise up to 6 and 1 12 CM from its lowest to its highest position depending on the stress level and of course our very own individual anatomical structures in this animation the Dome Rises about 2 in or 5 cm let's move on to my favorite camera angle here you can see the diaphragm unfolding its magic from below the three openings that you can see allow the aorta the esophagus and the inferior Vina Cava to pass through as a side note when the diaphragm contracts it typically thickens from 1 to 2 cm or from4 to8 in I find this quite remarkable let's move on and add the helper muscles for the diaphragm the intercostal muscles without going into too much detail these muscles have three layers and we will focus on only two the external intercostal muscles which are visible on the surface contract during inhalation lifting the ribs upwards and outwards this expansion of the Torso AIDS in drawing the air into the lungs beneath them the internal intercostal muscles contract during forc exhalation depress the ribs and the cyst in expelling air from the lungs to better understand the movement of the intercostal muscles locate your ribs with your fingers and gently feel the space between them that's where intercostal muscles lie as you breathe in and breathe out you can feel these muscles expanding and Contracting along with the movement of your rib cage the diaphragm and intercostal muscles work together to adjust breathing in response to oxygen needs when more oxygen is is needed like during exercise or stress these muscles increase activity allowing deeper and faster breaths for better oxygen delivery conversely when oxygen demand is low such as during rest they reduce activity to conserve energy while still meeting the body's needs this Dynamic regulation ensures an optimal balance between oxygen supply and demand after discussing all of this let's proceed to our final round where we simply consider all superficial layers we can then appreciate how this movement originating from the very core of our being influences all structures lying superficially to it as always I also encourage you to share your feedback in the comments especially if you have any suggestions to enhance this animation I will for sure update this based on your inputs and new findings from my side additionally if any of you have access to surgical images of the diap showing its tendons or Fiber orientations I would greatly appreciate receiving them I think there is still room for improvement and with accurate visuals I can create a more informative version I also plan to reach out and collaborate with experts in various Fields related to breathing to explore different patterns and movements of the diaphragm I think this collaboration will provide valuable insights in how the internal movements at our core influences as human human beings as always I will also release a couple of short versions to this video without any commentary this will give you another chance to watch the diaphragm in movement without any distraction or additional input I think that's all I have to say for this time I thank you for tuning in and I hope to see you soon back inside the lab