[Music] hi this is Peter from Anatomy Zone and in this tutorial I'm going to give you an overview of the lower limb arterial blood supply so following this tutorial I'll do separate tutorials which look at different areas of the lower limb in more detail so this will just provide a broad overview so starting at the abdominal aor the abdominal AA splits into common iiac arteries so you've got a right and a left common iiac artery the common iiac arteries then divide into the internal and external branches so you've got a right and left internal and external iiac artery the internal iiac arteries give off several branches it's quite a complicated artery with multiple branches supplying the pelvic structures the Glu region and also giving off some branches which descend to supply the thigh so two branches the obturator artery and the inferior gluteal artery enter the thigh the superior gluteal artery and the inferior glal artery Supply the gluteal region but we'll take a look at the branches of the internal oniac artery in more detail in separate tutorials so coming back to the external IC artery this artery becomes the common femal artery as it crosses under the inguinal ligament to enter the femal triangle the common femoral artery then gives off a deep Branch known as the profunda femoris artery so this is known as the Deep femoral artery and it has two main branches so you've got the lateral circumflex artery and the medial circumflex artery and then the profund femoris terminates as Perforating branches which are known as Perforating branches because they perforate the adductor Magnus muscle so the common femal divides into the profund femous and it continues as The Superficial fem artery the SFA so the SFA travels through the adductor canal which is a muscular tunnel in the thigh beginning at the bottom of the femal triangle and ending at the adductor hiatus so you can see the adductor Hiatus in this model here as it's an opening in the adductor Magnus muscle and this allows the SFA to pass through into the posterior compartment of the thigh so as the SFA passes through this Hiatus into the posterior compartment of the thigh it becomes known as the poal artery so this artery passes between the gastrus and the popus muscles and it gives off genicular branches which Supply the knee joint and it then divides into anterior and posterior tibial arteries so the posterior tibial artery which you can see here descends Along The Superficial surface of the deep posterior muscles of the posterior compartment and it gives off the fibular artery which is also referred to sometimes as the perinal artery and this branch the lateral compartment of the leg the other branch of the popular teal artery is the anterior tubular artery so the anterior tubular artery passes into the anterior compartment of the leg through a gap in the Inus membrane between the tibia and the fibula it then descends down the leg and at the foot the anterior tubal artery becomes the dorsalis pedis artery the posterior tibular artery on the other hand enters the foot via the tarel tunnel winding behind the medial malis and then it splits into the lateral and the medial planter arteries which are present on the planter aspect of the foot the posterior tibial pulse is palpable inferiorly and posteriorly behind the medial malleolus now coming back back to the dorsalis pedis artery this gives off the deep planter artery between the first and second metatarsals and this anastomoses on the planter aspect of the foot with the branch of the lateral planter artery to form the Deep planter Arch on the sole of the foot we've taken a look now at the main arterial supply to the lower limb in the next tutorials we're going to take a look in more detail at some of the branches of the vessels we've talked about in this tutorial so hopefully that's given you a good overview of the arterial supply to the lower limb