077 The Ligaments Of The Sternoclavicular Joint
Let’s talk about the ligaments found on the sternoclavicular joint. Here, you’ll learn where the costoclavicular ligament, the interclavicular ligament, and the anterior and posterior sternoclavicular ligaments are.
Transcript of Today’s Episode
Let’s get right into it.
Here, we’re looking at the sternoclavicular joint. Once again, like we said in the previous video, this is where the clavicle articulates with the manubrium of the sternum. We can see that right here. We have that articulation here, and we can also see it in this picture, of course with some of the ligaments.
I promised you that we’re going to look at some of those ligaments. So, let’s get right into looking at that. Remember this is the one point where the upper extremities connect from bone to bone with the trunk.
If we have an anterior, if we’re going to specify that, most likely that means we also have a posterior sternoclavicular ligament, and you can’t see that here, but that’s going to be on the posterior aspect. We have those two ligaments that are connecting between the sternum, the manubrium of the sternum, and the sternal end of the clavicle. Those are the first two that I wanted to talk about.
Then, the next one is called the costoclavicular ligament. That’s a very short ligament here that connects with the inferior aspect of the clavicle, the costal tubercle that we looked at before, that’s going to connect from the tubercle on the inferior aspect to the costal cartilage of the first rib.
Once again, we have the costal tuberosity on the inferior surface of the clavicle and there’s going to be a ligament that goes from the tuberosity down to the first rib right here where we have the costal cartilage of the first rib.
Then, we have the interclavicular ligament, that’s this ligament that goes all the way across here, and that interclavicular ligament extends between the two sternal ends of the two clavicles. It’s basically connecting one clavicle to the next. It extends across the manubrium of the sternum, and it actually connects with the superior margin of that sternum.
Let’s do our quick review quiz. I know we just did one but, we;re going to do it again. You can turn the volume off and test yourself.
So, first one we have is the anterior sternoclavicular ligament. On the other side, we have the posterior sternoclavicular ligament that you can’t see here. Right here, we have the costoclavicular ligament, and here, we have the interclavicular ligament.
This is Leslie Samuel, and I’ll see you in the next one.