Lower Extremity Innervation Flashcards
(29 cards)
the __ plexus innervates the lower extremities
lumbosacral plexus
4 motor nerves that innervate the lower extremities
- obturature
- femoral (thihg and hip)
- fibular/peroneal (leg)
- tibial
the peroneal and tibial nerves run together to form the ___ nerve befoe branching out
sciatic nerve
which nervous plexuses exist at these vertebral levels?
Fill out this innervation
the femoral nerve serves the ___ compartment of the thigh
the anterior compartment of the thigh and hip– ie, the sartorius, rector femoris, vastus intermedius, medialis, lateralis, iliopsoas.
the obturator nerve is part of the ___ plexus and supplies the ___ compartment of the hip and thigh
part of the lumbosacral plexus and innercates the MEDIAL compartment; ie the adductor longus, magnus, brevis, gracilis,
the supeiror gluteal nerve is part of the ___ plexus and supplies the;
part of the sacral plexus and supplies the posterior hip EXCEPT the gluteus maximus
what nerve supplies the gluteus maximus?
inferior gluteal nerve of the sacral plexus
the ____ nerve serves the anterior compartments of the leg/tibia
the ____ nerve serves the lateral compartment
- the ___- enrve serves the posterior nerve
the tibular nerve and common fibular nerve diverage at the ___ fossa.
the deep fibular/peroneal nerve serves the anterior compartments of the leg/tibia
the superficial fibular nerve serves the lateral compartment
- the tibial nerve serves the posterior nerve
the tibular nerve and common fibular/peroneal nerve diverage at the POPLITEAL fossa.
note:
what nerve innervates the posterior thigh
the sciatic nerve.
above the popliteal fossa, the __ ___ diverges from the common fibular nerve, the CF passes arounf the head of the fibula and splits into the __ fibular, serving anterior compartment, and __ fibular, serving the lateral compartment.
a common fibular nerve is vulnerable nerv eis vulnerable to pressuere applied over the head of the fibula.
the tibial nerve continues through the __ __ to innervate the __ compartments of the leg.
above the popliteal fossa, the tibial nerve diverges from the common fibular nerve, the CF passes arounf the head of the fibula and splits into the deep fibular, serving anterior compartment, and superficial fibular, serving the lateral compartment.
a common fibular nerve is vulnerable nerv eis vulnerable to pressuere applied over the head of the fibula.
the tibial nerve continues through the popliteal fossa to innervate the posterior compartments of the leg.
An elderly man walks into a clinic complaining of pain in his lower back that radiates down the posterior thigh. He does not show any signs of traumatic injury.
Which nerve supplies the posterior compartment of the thigh?
- Tibial division of the sciatic n.
2 Deep fibular n.
3 Femoral n. (L2-4)
4 Obturator n. (L2-4)
1- the sciatic nerve serves the posterior thigh, and then branches into the tibial division and fibular division
Which nerve supplies the anterior compartment of the thigh?
Superficial fibula n.
Obturator n. (L2-4)
Femoral n. (L2-4)
Sciatic n. (L4-S3)
Femoral n. (L2-4)
Which nerve supplies the medial compartment of the thigh?
Obturator n. (L2-4)
Femoral n. (L2-4)
Sciatic n. (L4-S3)
Tibial n.
Obturator n. (L2-4)
When the femoral a. traverses through the adductor hiatus in the adductor magnus m., it’s name changes to the ___ a___.
When the femoral a. traverses through the adductor hiatus in tha adductor magnus m., it’s name changes to the POPLITEAL ARTERY
Which of the following structures is NOT located in the popliteal fossa?
Tibial n.
popliteal v.
Femoral a.
popliteal a.
Common fibular n.
Femoral a.
structures of the popliteal fossa
tibial nerve.
popliteal vein.
popliteal artery, a continuation of the femoral artery.
small saphenous vein (termination)
common fibular nerve (also known as the common peroneal nerve)
Popliteal lymph nodes and vessels
Which of the following structures gives rise to all arterial supply in the thigh, leg, and foot?
Deep a. of the thigh
Femoral a.
popliteal a.
Internal iliac a.
Femoral a.
