Parker SG Flashcards
All muscles of the medial thigh are innervated by the obturator n. except:
pectineus (femoral n)
Hamstring part of adductor mag (tibial n.)
What compartment of the femoral sheath forms the femoral canal?
the medial compartment of the femoral sheath
What is the pathway for a femoral hernia?
femoral ring –> femoral canal –> saphenous opening
What are the 3 main branches of the deep femoral a.?
Medial and lateral circumflex femoral
Perforating arteries
What point marks the beginning of the adductor canal?
Apex of femoral triangle where sartorius crosses over adductor longus
Which of the gluteus muscles works to medially rotate?
Gluteus medius and minnimus
Where is the safest place to give an injection in the gluteal region?
upper lateral quadrant
The posterior thigh is innervated by the tibial nerve except:
short head of biceps femoris (fibular n. L4-S2)
What nerve roots does the tibial n. consist of?
L4-S3
What are the only structures to pass through the greater sciatic foramen?
Superior gluteal n.a.v. Posterior femoral cutaneous n Inferior gluteal n.a.v Nerve to quadratus fem Nerve to piriformis Sciatic N.
+TENdon and belly of piriformis
What are the only structures that go both through GSF and LSF?
Pudendal n
Internal pudendal a.v.
Nerve to obturator internus
+TENdon of obturator internus
What spinal cord segments contribute to the femoral n?
L2-L4
What spinal cord segments contribute to the obturator n.?
L2-L4
What spinal cord segments contribute to the sciatic n?
L4-S3
What spinal cord segments contribute to the pudendal n?
S2-S4
How is the knee locked when standing (fixed tibia)?
Femur rotates laterally to unlock the knee and rotates medially to lock knee
Popliteus laterally rotates femur to unlock it knee
When walking how is the knee locked and unlocked?
Biceps femoris laterally rotates tibia locking it
popliteus, semimemranosus, semitendonosus medially rotate tibia unlocking it
What is dorsilateral to the popliteal vein in the popliteal fossa?
Tibial n.
What are the two branches of the femoral n?
Saphenous n. and n. to vastus medialis
All muscles in the medial thigh compartment are medial rotators except:
obturator externus
