Thigh Flashcards
Name the 6 muscles that cross both the hip and knee joints.
sartorius semitendinosus semimembranosus biceps femoris (long head) gracilis rectus femoris
Name the five nerves of the thigh and their spinal root origins.
- posterior femoral cutaneous S1-S3
- lateral femoral cutaneous L2-L3
- femoral nerve L2-L4
- obturator nerve L2-L4
- sciatic nerve L4-S3
Which of the 5 nerves of the thigh are purely sensory in function?
SENSORY:
posterior femoral cutaneous
lateral femoral cutaneous
Which of the 5 nerves of the thigh are purely motor in function?
sciatic
Which of the 5 nerves of the thigh are mixed sensory and motor in function?
femoral
obturator
What are the dermatomes of the lower limb?
L1 inguinal region
L4 hip, patella, big toe
L5 dorsum, sole of foot
S1, S2 posterior lower limb
Which dorsal root ganglia provide cutaneous innervation of the anterior knee?
L4
Which dorsal root ganglia provide cutaneous innervation of the popliteal fossa?
S2 medially
S1 laterally
Which dorsal root ganglia provide cutaneous innervation of the great toe?
L4
Which dorsal root ganglia provide cutaneous innervation of the middle three toes?
L5
Which dorsal root ganglia provide cutaneous innervation of the 5th toe?
S1
Which arteries subserve the head and neck of the femur?
lateral circumflex artery
medial circumflex artery
(branches of deep femoral)
Which arteries form an anastomosis around the knee?
superior lateral & medial genicular arteries
inferior lateral & medial genicular arteries
Which veins are superficial to the fascia lata?
small and great saphenous veins
What are the 3 major locations of lymph nodes in the leg?
- superficial inguinal lymph nodes
- deep inguinal lymph nodes
- popliteal lymph nodes
What are the borders of the femoral triangle?
superior border: inguinal ligament medial border: lateral edge of adductor longus lateral border: medial edge of sartorius floor: pectineus and iliopsoas roof: deep & superficial fascia
What are the contents of the femoral triangle?
laterally: femoral nerve
next: femoral artery
center: femoral vein
medially: femoral canal containing lymphatics
What are the borders of the adductor canal?
roof: sartorius
lateral: medial edge of quadriceps femoris
medial: the line where the pectineus, adductor longus, & adductor magnus pass posterior to the quadriceps femoris
inferior end: adductor hiatus
What are the contents of the adductor canal?
femoral nerve
femoral artery
femoral vein
What are the borders of the popliteal fossa?
a diamond-shaped space
superior borders are made up of the lateral edges of semitendinosus & semimembranosus and the medial edge of biceps femoris
inferior borders are the edges of the medial and lateral heads of the gastrocnemius
floor is the femur
roof is the deep and superficial investing fascia of the skin
What are the contents of the popliteal fossa?
popliteal artery (the continuation of the femoral artery)
popliteal vein (the source for the femoral vein)
site of branching of sciatic nerve into tibial nerve and common fibular nerve
popliteal lymph nodes
portions of lateral & medal superior genicular arteries, portions of lateral & medial inferior genicular arteries, portion of middle genicular artery
Of the three structures in the adductor canal, name the two that transit through the adductor hiatus and the one structure that bypasses the adductor hiatus.
The femoral artery and femoral vein transit through the adductor hiatus, while the femoral nerve bypasses the hiatus and is renamed the saphenous nerve.
What is the pes anserinus?
A tendinous structure found on the head of the MEDIAL TIBIA that looks like a 3-toed webbed bird foot. Made up of SGT: sartorius, gracilis, semiTendinosus
What 2 muscles insert on the IT band?
gluteus maximus, tensor fascia lata
