Thigh I and II Flashcards
What is the femoral angle of inclination?
126 degree angle of the head connected to the shaft of the femur.
This angle is less in females than in males due to the larger female hip size.
The genital branches of the genitofemoral (L1, L2) and the ilioinguinal nerves (L1) supply what areas in the thigh
Emerge from the superficial ring and supply the proximal thigh with most of the branches going to the genital region.
The femoral branch of the genital femoral (L1,L2) supplies what regions of the thigh?
Supplies the skin over the femoral triangle.
Th medial cutaneous branch of the femoral nerve supplies what regions of the thigh?
Supplies the skin of the medial thigh
Intermediate cutaneous branch of the femoral nerve supplies what region in the thigh?
Supplies the skin of the distal anterior thigh.
The lateral femoral cutaneous nerve (L2, L3) enters the thigh where and supplies what region of the thigh?
Enters the thigh just medially to the ASIS supplying the lateral thigh just laterally to the intermediate cutaneous branch of the femoral nerve.
Posterior femoral cutaneous nerve (S1,S2,S3) supplies what portion of the thigh?
Supplies the posterior thigh and popliteal region.
Where does the posterior femoral cutaneous nerve originate from?
It originates from the sacral plexus and is composed of nerves S1,S2,S3
The great saphenous vein tranverses through what opening to drain into what vein?
The great saphenous vein transverses through the saphenous opening in the fasciae latae and dumps into the femoral vein.
Superiorly the fasciae latae is attached to the?
Inguinal ligament, parts of teh hip bone, sacrum coccyx, and scarpas fascia and the sacrotuberous ligament.
Inferiorly, the fasiae latae is continuous with what fasciae?
The fasciae latae of the leg becomes continuous with the crural fascia of the leg.
What nerves innervate pectineus?
Femoral and obturator nerves
What nerve controls all of the muscles within the anterior compartment of the leg?
The femoral nerve
What nerve controls all of the muscles within the medial compartment of the leg?
The obturator nerve
What nerve controls the posterior compartment of the leg?
The tibial nerve, except for the short head of the biceps femoris.
What is the action of the anterior compartment of the leg?
Flexors of the hip and extensors of the knee
What is the action of the medial compartment of the leg?
These are the adductors
What is the action of the posterior compartment of the thigh?
These are hip extendors and knee flexors.
What nerve innervates the short head of the biceps femoris?
The common peroneal nerve.
What muscles make up the floor of the femoral triangle?
The iliopsoas and the pectineus muscles.
What is the contents of the femoral triangle?
The femoral artery and branches, the femoral vein and branches the femoral nerve and branches, the femoral sheath, and femoral hernias usually occuring at the femoral ring.
What is the adductor canal and what makes it up?
The adductor canal is found at the apex of the femoral triangle to the adductor hiatus in the adductor magnus muscle.
What is the content of the adductor canal?
Femoral artery and vein
The saphenous nerve
And the nerve to the vastus medialis
What does the saphenous nerve travel with as it exits the adductor canal?
It travels with the geniculate artery.
What nerve levels make up the femoral nerve?
L2-4 which is the largest branch of the lumbar plexus.
Unlike the femoral artery and vein, the femoral nerve is not…..
Unlike the femoral artery and vein the femoral nerve is not enclosed in the femoral sheath.
What are the sensory branches of the femoral nerve?
The medial cutaneous femoral nerve and the intermediate femoral cutaneous nerve.
Also gives off the saphenous nerve.
The femoral nerve gives motor nerve supply to what muscles?
Sartorius, Quadraceps femoris, articularis genu, and pectinius
Of the muscles supplied by the femoral nerve, which muscle also receives innervation from the obturator nerve?
The pectinues muscle from the anterior division of the obturator nerve.
The anterior division of the obturator nerve supplies what muscles?
What two muscles is it between?
Located between adductor longus and brevis, the anterior division of the obturator nerve supplies: Adductor longus Adductor brevis Gracilis Part of pectineus
The posterior division of the obturator nerve supplies what muscles with innervation?
What two muscles is it between?
Located between adductor brevis and adductor magnus. The posterior division of the obturator nerve supplies:
Obturator externus
Adductor brevis
Adductor magnus
Both the superficial and deep profundal arteries are branches from what major artery?
These both come from the femoral artery in the thigh.
Where does the small saphenous vein terminate?
It terminates in the popliteal fossa dumping into the popliteal vein.
What fossa can the posterior cutaneous nerve of the thigh be found in?
The popliteal fossa
At which branch of the femoris profundus does the femoris profundus terminate?
At the fourth division of the profundus.
Where do all of the hamstring muscles originate from?
The ischial tuberosity
What makes up the medial group of the hamstrings?
Semitendinosus and teh deeper semimembranosis
What makes up the lateral group of the hamstrings?
The biceps femoris.
What is the origin for the long head of the biceps femoris?
Ischial tuberosity
What is the origin of the short head of the biceps femoris?
The linea aspera.
What is the upper medial boundary of the popliteal fossa?
The semimembranosus and semitendanosus
What makes up the upper lateral border of the popliteal fossa?
The biceps femoris and its tendons.
What makes up the inferomedial head of the popliteal fossa?
The medial head of the gastrocnemius
What makes up the inferolateral head of the popliteal fossa?
The lateral head of the gastrocnemius
Adductor brevis devides the obturator nerve into what two segements?
Anterior to the adductor brevis is the anterior obturator nerve. Likewise, posterior to the adductor brevis is the posterior obturator nerve.
The adductor magnas houses the adductor hiatus, at this point in the muscle what structure switches names?
The femoral vessels switch names to the popliteal vessels.
