The thigh is separated on the posterior side by the?
Gluteal fold and the knee joint
Gluteus maximus and the quadratus femoris
The thigh is separated on the anterior/superior region by the? Also known as the superior border
What does the femoral triangle communicate?
The femoral nerve and femoral artery and vein
Veins, arteries and nerves usually run in which direction?
Medial to lateral
Where is the adductor canal located?
At the bottom of the triangle where the VAN exit
What is the superior boundary of the femoral triangle?
What is the medial boundary of the femoral triangle?
Medial aspect of the adductor longus
What is the lateral boundary of the femoral triangle?
The medial aspect of the sartorius
What four muscles make up the floor of the femoral triangle?
2. Adductor Longus
4. Psoas Major
Where do the structors of the femoral triangle exit?
Via the adductor canal
What attaches and originates from the proximal femur?
The gluteal muscles attach and the quad muscles originate
What does the linea aspera divide into?
The medial and lateral supracondylar lines
What does the valgus angle do?
Places the knees in the mid-line of the body which helps facilitate smooth bipedal gliding gait
What joint(s) do the anterior thigh muscles act on?
The hip and knee joint
What is the main function of the anterior portion of the thigh?
Flex the thigh and extend the leg
What nerve typically innervates the anterior portion of the thigh?
The femoral nerve
The medial portion of the thigh includes muscles that do what?
In general, the medial portion of the thigh is innervated by?
the obturator nerve
What do the muscles in the posterior portion of the thigh do?
Extend the thigh and flex the leg
What nerve typically innervates the posterior thigh muscles?
What is the sheath-like layer of the muscles?
The femoral nerve runs from what to what?
From the ventral rami of L2-L4
Passes under the inguinal ligament
Runs medial to the artery and vein
Goes to a groove by the iliacus and psoas major
What do the motor branches of the femoral nerve supply?
Iliacus, Pectineus, and anterior thigh
What do the cutaneous branches of the femoral nerve supply?
Skin on the front thigh, the knee, and the leg
What is the derivation of the femoral artery?
(popliteal artery)--femoral artery-- external iliac artery- common iliac artery
What are the major branches of the femoral artery?
Deep artery of the thigh
Lateral and medial circumflex arteries
3 Perforating arteries
What muscles make up the posterior compartment of the thigh?
Semitendinosus and semimembranosus
The sciatic nerve is a branch of the?
Lumbosacral plexus (L4-S3)
What do the motor branches of the sciatic nerve innervate?
All muscles of the posterior thigh
Hamstring portion of adductor magnus
Motor branches continue into the leg and foot
What is the route of the sciatic nerve?
Enters gluteal region through greater sciatic foramen below piriformis
Splits into tibial and common fibular nerves
What is the muscle in the medial compartment of the thigh that does not ADD?
All of the muscles of the medial compartment are innervated by the what nerve? except what two muscles?
except pectineus and the hamstring portion of adductor magnus
The obturator nerve is from a branch of what plexus?
The lumbar plexus (L2-L4)
The motor fibers of the obturator nerve innervate?
Adductor muscles except pectineus and hamstring portion of the adductor longus
What is the route of the obturator nerve?
It descends on the psoas major
Enters thigh through obturator canal
What are the posterior and anterior branch of the obturator nerve separated by?
The adductor brevis
What is the obturator artery a branch of?
the internal iliac artery
What is the route of the obturator artery?
It enters the medial thigh through the obturator canal
What are the major branches of the obturator artery?
Anterior- runs on ant surface of ob membrane
Posterior- runs on post surface of ob membrane
Acetabular branch- arises from the post branch
What is an anatomoses?
The branching union of arteries; where they merge
What is the anastomoses of the obturator artery?
Inferior gluteal artery
Medial circumflex femoral artery
thigh and knee muscles and terms