00:01
In this lecture, we'll look at
the joints of the upper limb.
00:05
So, first of all, we'll start with
the sternoclavicular joint.
00:08
And then, we're going to move
across to the acromioclavicular joint,
followed by the glenohumeral joint, the
elbow joint, the proximal radioulnar joint,
the distal radioulnar joint, and then, we'll look at
various joints within the wrist at the carpal bones,
the carpometacarpal joints,
important joints within the hand,
and then finally, the metacarpophalangeal joints
and the interphalangeal joints.
00:34
So, let's take a tour through the joints of the upper limb.
Let's start with the sternoclavicular joints.
00:40
It's really associated as its name suggests, as all
of the names of the joints suggest between the sternum.
00:47
But this time, the proximal end of the
clavicle is articulating with the sternum
at its clavicular notch, specifically,
of the manubrium of the sternum.
00:57
So, the proximal end of the clavicle
attaching to the manubrium of the sternum.
01:03
There's also a slight interaction
with the first costal cartilage.
01:06
And here, we can see the articular cavity between
those two which is occupied by an articular disk.
01:13
Here, we can see it's covered as many of
the joints are, by a joint capsule
and here, we can see strengthening of that
joint capsule by various ligaments.
01:22
Here, we have the anterior
sterno-clavicular ligament.
01:25
And as there's an anterior version,
we'll find we also have a posterior version.
01:30
So, the anterior and posterior
sternoclavicular ligaments.
01:34
Here, we can see running from this joint all the way
across the superior surface of the manubrium
to the other sterno-clavicular joints,
we have the interclavicular ligament.
01:45
Attaching the clavicle and holding it
in place against the first web,
we have the costoclavicular
ligament as well.
01:53
If we then, move on to the movement of the sternoclavicular joint,
there's not that much mobility in this space.
01:59
There's a little bit of elevation and a little bit of depression.
Here, we can see this looking at the anterior aspect.
02:04
And then, if we have a look superiorly down
onto the superior surface of the manubrium on the right
and the clavicle extending towards the left,
we can have protraction
with the clavicle moving anteriorly and we
can have retraction with the clavicle moving posteriorly.
02:22
There's also minimal rotation axially
around the axial aspect of the clavicle.
02:29
It can rotate very slightly.