anterior and medial thigh Flashcards
pectineus origin
superior ramus of pubis
pectineus insertion
pectineal line of femur
pectineus innervation
femoral nerve
pectineus action
-adducts and flexes hip joint
sartorius origin
anterior superior iliac spine
sartorius insertion
superior part of medial surface of tibia
sartorius innervation
femoral nerve (L2, L3)
Sartorius action
- flexes, abducts and laterally rotates hip joint
- flexes knee joint
Four parts of quadriceps femoris
- Rectus femoris
- Vastus lateralis
- Vastus medialis
- Vastus intermedius
Rectus femoris origin
anterior inferior iliac spine
vastus lateralis origin
- greater trochanter
- lateral lip of linea aspera
vastus medialis origin
- medial lip of linea aspera
- intertrochanteric line
vastus intermedius origin
-anterior and lateral surfaces of shaft of femur
Quadriceps femoris insertion (all four)
Quadriceps tendon
Quadriceps femoris innervation (all four)
femoral nerve
Quadriceps femoris action (all four)
- Extends knee joint
- rectus femoris only: flex hip
adductor longus origin
body of pubis inferior to pubic crest
adductor longus insertion
middle third of linea aspera of femur
adductor longus innervation
obturator nerve
adductor longus action
adducts hip joint
muscles of the anterior thigh
- pectineus
- iliopsoas
- sartorius
- quadriceps femoris (four parts)
all innervated by femoral except of psoas major
Quadriceps tendon
- the four muscle tendons of quadricepts femoris come together to make this
- it becomes patellar ligament at knee
Patellar ligament
- patella is embredded in there
- continuation of quadriceps tendon
Muscles of the medial thigh
- “adductor group”
- adductor longus
- adductor brevis
- adductor magnus
- gracilis
- obturator externus
all innervated by obturator excepts for hamstring part of adductor magnus
adductor hiatus
- where the femoral artery and vein pass from the anterior compartment of the thigh to the popliteal fossa (posterior to knee)
- through adductor part of adductor magnus
- saphenous nerve also runs through here
adductor brevis origin
body and inferior ramus of pubis
adductor brevis insertion
- pectineal line
- proximal part of linea of aspera of femur
adductor brevis innervation and action
- obturator nerve
- adducts hip joint
adductor magnus (two parts) origin
Adductor part: inferior ramus of pubis
Hamstring part: ischial tuberosity
adductor magnus (two parts) insertion
adductor part: gluteal tuberosity, linea aspera
hamstring part: adductor tubercle of femur
adductor magnus (two parts) innervation
adductor part: obturator nerve
hamstring part: tibial part of sciatic nerve
adductor magnus (two parts) action
both: adducts hip joint
gracilis origin
body and inferior ramus of pubis
gracilis insertion
superior part of medial surface of tibia
gracilis innervation and action
- obturator nerve
- adducts hip joint, flexes knee
obturator externus origin
- margins of obturator foramen
- obturator membrane
obturator externus insertion
trochanteric fossa of femur
obturator externus innervation and action
- obturator nerve
- laterally rotates hip joint
borders of the femoral triangle
superior (base): inguinal ligament
medial: adductor longus
lateral: sartorius
(where they meet is the apex)
floor and roof of femoral triangle
floor: iliopsoas and pectineus
roof: fascia lata
contents of femoral triangle:
(lateral to medial)
- femoral nerve
- femoral artery
- femoral vein (Great Saphenous and Profundus femoris)
- Femoral Canal (contains lymph)
femoral nerve
- largest branch of lumbar plexus
- after the femoral triangle it splits
- main splits is saphenous nerve and cutaneous branches
cutaneous branches of femoral nerve
go to and supply the anteriomedial thigh
Saphenous Nerve
- branch of femoral nerve
- runs through femoral triangle and adductor hiatus
- to supply the skin and fascia of the anterimedial knee, leg and foot
Pes anserinous
- conjoined tendons of three muscles at medial aspect of knee which inserts into the tibia
- has a bursae between the tendons
three muscles of the pes anserinous
- sartorius
- gracilis
- semitendinosus
Two superficial veins of the lower limb
- great saphenous
- small saphenous
Great saphenous vein
- Begins at the dorsal digital vein of great toe with the dorsal venous arch
- runs medially to drain into the femoral vein
Small saphenous vein
- Dorsal digital vein of 5th digit with dorsal venous arch
- up the lateral side and dumps into popliteal at the popliteal fossa
Deep veins of the lower limb
Flow into the popliteal vein which becomes femoral vein then external iliac vein
