Lower Extremities Flashcards
Innervates the anterior thigh muscles
Femoral nerve
Function of anterior thigh muscles
Thigh flexion, leg extension
Quadriceps femoris include:
Rectus femoris, vastus lateralis, vastus medialis, vastus intermedius
Origin of sartorius
ASIS
Origin of rectus femoris
AIIS
Common insertion of iliacus and psoas
Lesser trochanter of femur
Common insertion of quadriceps femoris
Quadriceps/ patellar tendon
Function of medial thigh muscles
Adduction
Medial thigh muscles consists of
Adductor longus, adductor brevis, adductor magnus, gracilis
Common insertion of adductor muscles
Linea aspera of femur
Insertion of hamstring part of adductor magnus
Adductor tubercle of femur
Innervation of medial thigh muscles
Obturator
Function of posterior thigh muscles
Extension
Innervation to posterior thigh muscles
Sciatic
Hamstring muscles consist of:
Semitendinosus, semimembranosus, biceps femoris, adductor magnus
Common origin of hamstring muscles
Ischial tuberosity
Superior boundary of femoral triangle
Inguinal ligament
Medial boundary of femoral triangle
Adductor longus
Lateral boundary of femoral triangle
Sartorius
Floor of femoral triangle
Adductor longus, pectineus, iliopsoas
Contents of femoral triangle
Femoral nerve, sheath, artery, vein
Found in the lateral compartment of the femoral sheath
Femoral artery
Found in the intermediate compartment of the femoral sheath
Femoral vein
Found in the medial compartment of the femoral sheath
Femoral canal
Usual location of the hernial sac in a femoral hernia
Below and lateral to pubic tubercle
Boundaries of the adductor canal
Posterior and Medial: adductor longus/ magnus
Contents of the adductor canal
Femoral artery/vein, saphenous nerve, nerve to vastus medialis
Thigh extensor
Gluteus maximus-superficial
Abductor and medial rotator of thigh
Gluteus medius and intermedius
Lateral rotator of the thigh
Deep group- piriformis, obt. Internus superior, and inferior,gemelli, quadratus femoris
Common origin of gluteus muscles
Outer surface of ileum
Point of insertion of gluteus maximus
Gluteal tuberosity, iliotibial tract
Point of insertion of the quadratus femoris
Quadratus tubercle
Also called chopart joint
Transverse lateral joint
Talonavicular jt, calcaneocuboid jt
Chopart’s joint consist of
Also called lisfrane joint
Tarsometatarasal
Articulation of tarsal bone with metatarsal
Lisfrane joint
Provide the main propulsive force in walking and running
Gastrocnemius, soleus, plantaris
Prevents anterior displacement for tibia on femur/ posterior displacement of femur on tibia
ACL
Location of hernial sac(femoral)
Below and lateral to pelvic tubercle
Skin below inguinal ligament is supplied by
Genitofemoral nerve
Location of femoral vein
Medial to femoral pulse
Aka subsartorial/ hunter’s canal
Adductor canal
Contents of adductor canal
Femoral artery and vein, saphenous nerve, nerve to vastus medialis
Piriformis is found where
Gluteal region
Sartorius is found where
Anterior thight
gracilis is found where
Medial thigh
Common origin of gluteal muscles
Outer surface of ilium
Common insertion of gluteal muscles
Greater trochanter of femur
Point of insertion of gluteus maximus
Gluteal tuberosity
Innervates anterior leg muscles
Deep peroneal nerve
Innervates lateral leg muscles
Superficial peroneal nerve
Innervates posterior leg muscles
Tibial nerve
Peroneus tertius is part of
Anterior leg muscles
Peroneus longus and brevis is part of which muscles
Lateral leg muscles
Poplities is part of which muscle group
Deep, posterior leg muscles
Collectively called triceps surae
Triceps surae
Dorsiflexes and extends the foot
Anterior leg muscles
Plantar flexes and everts the foot
Lateral leg muscles
Plantar flexes foot and flexes leg
Posterior leg muscles
Unlocks knee
Popliteus