 One two three and action welcome once again to my youtube channel, please like and subscribe Today we're going to be talking about the true or Intrinsic back muscles now How do you know the intrinsic back muscles from the extrinsic back muscles the intrinsic back muscles one? They directly affect the back in posture to be a supplied by the dorsi Rhymus Rhymy nerves and Three can one of my students tell me Thank you very much Closed by the So here you see that it has been separated posterior Starting from the most lateral end we have here From here to We have the ilio costalis followed by the long ismas and then between the Spinal processes and the transverse processes you have the spin ass Thank you very much And now my colleague will be taking away and taking over from me This And if you take one I see that it's connected to the ribs Ilio costalis is because it's connected to the ribs if you take under you see that it's connected to the ribs That is okay, then then the the immediate is this No, you see must not be seen was either the same origin from the from the ilio And that's it. I'm sorry. I'm sorry. I'm sorry. I'm sorry. I'm sorry So come please yes, and this team please Is the if the spinal is muscle and it's it comes from the There's also come from same or the same or Yeah, the other is To the multiple states to the spinous process For them or they are the red muscle Thank you My students So below the intrinsic back muscles, they are deeper muscles are not visible They are the multi feeders They are also called the transversal spinal muscles because they are between the transversal process and sparrows process And they do not affect the posture more of the action is These are extrinsic muscles of the back they do not affect posture Did not affect push-up, but they are because they are the back so they are the back So this is the trapezoid the other side forms a diamond shape Also, it's the trapezoid then If I reflect the trapezoid then boy Come boy major Boy minor and leave it to scapulae somewhere Yeah, so Levita scatley. Yes And Then this is the terra colomba fascia and the Latissimus the site gets this partial origin from the terra colomba fascia and If I reflect Latissimus the site I will see the Seratus posterior posterior Seratus posterior inferior if you are here Okay, yeah, it's correct seratus posterior inferior That's here Then under the rhombus The seratus posterior superior That's it for the extrinsic muscles of the back. It's a wrap. It's a rat guy