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
In this video, I’m going to be talking about the ligaments of the sternoclavicular joint.
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.
Let’s get into the ligaments that we have. The first two that I want to point out, you can only see one of them here, but right here, you see we have the anterior sternoclavicular ligament.
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.
That’s the third ligament, costoclavicular ligament.
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.
Once again, we have the anterior and posterior sternoclavicular ligaments. We have the costoclavicular ligaments and the interclavicular ligament.
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.
That’s pretty much it for this video. If you’d like more videos like this and other resources to help make Biology fun, go to the website at interactive-biology.com.
This is Leslie Samuel, and I’ll see you in the next one.