Let’s just have a look at the pes anserinus. I’ve
mentioned this a few times before. This really
is a collection of three tendons that are
going to the superomedial aspect of the tibia.
So here, we can see we have three tendons.
We’ve got the femur here. This is a slightly
kind of lateral view here of the knee joint.
And we can see the femurs being exposed.
We can see we’ve got the patellar here, and
we’ve got the quadriceps tendon, we’ve
got the patellar tendon. And we can see just
medial to the patellar tendon in the tibial
tuberosity, we’ve got three tendons - the
tendon for sartorius, the tendon for gracilis,
and the tendon for semitendinosus. Collectively,
this is known as the pes anserinus.
We can see these muscles here on the medial view
of the knee. We have this muscle here, sartorius.
We then have this muscle here, gracilis. And
then we have this muscle here, semitendinosus.
And these are all passing just medial to the
patellar tendons insertion onto the tibial
tuberosity. So it’s a common attachment site
for three muscles, sartorius, gracilis,
semitendinosus, and it helps to stabilize the
knee joint, just like the iliotibial tract
stabilize the knee joint on the lateral aspect.
Now, I want to talk about the femoral triangle.