 Good day everybody, welcome to the next section of the anterior aspect of the thigh and Dr. Sanjeev's annual department chair. This quick video is going to be about the femoral triangle. So if you see in front of you, we can see a triangular space. The superior boundary of the triangular space is bounded by this structure here. This is the inguinal ligament. It extends from the anterior superior leg spine to the pubic tubercle. This is actually a ponurosis of the abdominal muscle. The lateral margin of the femoral triangle is this muscle here. This is the sartorius. And the medial margin of the femoral triangle is this muscle. This is the adductor loggus. So these three muscles constitute the femoral triangle. In life the femoral triangle was bridged over by a tough fascia and I have retained a part of that fascia here and that is this fascia here, this fascialata of the thigh. We can see an opening here and we can see that opening all around here. This is called the cephenous opening and in life this is covered by a thin membrane which we had called as the cribriform fascia, which is not the same as the fascialata. This cribriform fascia is pierced by one very important vein and you can see that vein here. This is the long cephenous vein. Long cephenous vein starts all the way from the dorsal of the foot. It travels on the medial side of the leg behind the knee and it travels all the way up and it pierces through the cribriform fascia as you can see here and it opens into the femoral vein which I am going to describe just a little while later. So this is the long cephenous vein and this is the cephenous opening all the way around. Now let's come to the contents of the femoral triangle. The most important contents of the femoral triangle are this structure here which has been lifted up. This is the femoral artery and just medial to that is this structure here. This is the femoral vein. This was completely in sheath in one tough fibro structure which is called the femoral sheath which I have removed. So this is the femoral artery and the femoral vein. Other contents are lymph nodes which are called the inguinal group of lymph nodes and we can see the lymphatics are also piercing the cribriform fascia and they are going inside. So these are some lymph nodes. In the inguinal region the lymph nodes are divided into two groups. One group of lymph nodes are oriented vertically. Those have been retained here. This is the vertical and some group of lymph nodes are horizontally located. One of that I have retained here. So these are collectively called the inguinal group of lymph nodes. So that's another content of the femoral triangle. The next content of the femoral triangle is this structure here. This is femoral nerve and we can see the femoral nerve just as it comes to the femoral triangle it divides into so many branches. And all of these branches supply all the muscles of the anterior compartment. It also supplies some cutaneous branches. One of that cutaneous branch we can see going all the way down and this is that cutaneous branch. This is the longest cutaneous branch which enters the ductor canal and this branch is called the cephenous nerve. This is the longest cutaneous branch which goes all the way to the medial side of the foot. The femoral nerve and the muscle just lateral to that. This is the iliosoas. These two are located in one part of the sub-inguinal space here where my finger has gone in. This is called the muscular compartment. While these structures the femoral artery, femoral vein and a small canal, medial to the femoral vein, the femoral canal, these structures they come out through the vascular compartment of the sub-inguinal space. Now let's take a quick look at what else is visible in the femoral triangle. We can see the origin of the profunda femoris. This is the profunda femoris artery and this is the profunda femoris vein and we can see they are dipping inside. They come to life next to the insertion of the adductor magnus and they give multiple perforating branches which pierce through the adductor magnus. So this is the origin of the profunda femoris which are also contents of the femoral triangle. So we have seen the termination of the long femoral vein going through the cribriform fascia and we have seen some other tributaries opening into the femoral vein. We have seen the femoral artery, we have seen the femoral vein, we have seen the femoral nerve and we have seen the muscular and the vascular compartment and we have seen the femoral opening. So these are the contents and what about the floor of the femoral triangle. If I retract this structure, medial to this iliozoas muscle we can see a muscle here. This is the pectinus muscle. To see the pectinus muscle more clearly we can lift up the femoral nerve and you can see this muscle here. This is the pectinus muscle and further medially we can see yet one more muscle if I retract like this and this muscle is the adductor brevis. So these two muscles form the floor of the femoral triangle, pectinus laterally and the adductor brevis medially. Where does the femoral triangle continue into? The femoral triangle at the junction between the adductor longus and the sartorius it continues into a canal which is called the adductor canal and we can see the femoral structures are disappearing into the adductor canal here. The adductor canal is bounded by, antromedially bounded by the sartorius, antrolaterally it is bounded by the vastus medialis and posteriorly it is bounded by the adductor longus. And after the adductor canal the femoral artery and the femoral vein disappears into a passage where my instrument has gone in and this is called the adductor hiatus which is an opening in the insertion of the adductor magnus. So this is about the femoral triangle and the adductor canal. Thank you very much for watching ladies and gentlemen. If you have any questions or comments put them in the comment section below. Dr. Sanjay Sanyal signing out. Don't forget to subscribe, like this video and share.