Thigh Flashcards
Fascia lata
Deep fascia of the thigh
Encloses the thick muscles
Thickens on the lateral side to form the iliotibial band
IT band
Iliotibial band
Lateral side of the thigh
Crosses the lateral aspect of the knee and attaches to the tibia
Muscle compartments of the thigh, and their innervation
Anterior (femoral nerve)
Medial (obturator nerve)
Posterior (sciatic nerve)
Femoral nerve comes from…
L2, 3 4
Main muscles in the anterior compartment of the thigh
Quadriceps femoris
Sartorius
4 parts of the quadriceps femoris
Rectus femoris
Vastus lateralis
Vastus medialis
Vastus intermedius
Which is the only part of the Quadriceps femoris that crosses the hip?
Rectus femoris
5 functions of the sartorius
At hip: flexes, abducts, and laterally rotates thigh
At knee: flexes and medially rotates leg
Femoral triangle is made by borders of which 3 structures?
Sartorius
Adductor longus
Inguinal ligament
What is found in the femoral triangle?
Femoral bundle (artery, vein, nerve)
3 muscles in the posterior compartment of the thigh
Biceps femoris
Semimembranosus
Semitendinosus
Sciatic nerve is made of…
L4, L5, S1,2,3
Where do most hamstring muscles attach in the hip?
Ischial tuberosity
Biceps femoris (origin, insertion, action, innervation)
Origin: long head from the ischial tuberosity, short head from the posterior shaft of femur
Insertion: head of fibula
Action: long head extends thigh, both heads flex knee, laterally rotates leg
Nerve: sciatic
Sciatic nerve splits into
Common fibular nerve (peroneal)
Tibial nerve
Popliteal fossa
Recess behind the knee
Contains all the major nerves and arteries that supply the leg, ankle, and foot
3 main muscles in the medial compartment of the thigh
Adductor longus
Adductor magnus
Gracilis
Obturator nerve is made up of…
L2, L3, L4
4 muscles that medially rotate the leg
Sartorius
Gracilis
Semimembranosus
Semitendinosus
Adductor hiatus
The opening in the adductor magnus muscle
Through which the femoral vessels pass to enter the popliteal fossa
Borders of the popliteal fossa
Biceps femoris
Semimembranosus
2 heads of the gastrocnemius
