Posterior Thigh/Anterior thigh and Trunk Flashcards
Semitendimosus mm (post thigh)
Origin: ischial tuberosity
Insertion: medial surface of upper portion of tibia ( pes anserinus)
Action: Hip EXT, leg FLX + IR
Nerve: Tibial portion of sciatic (VR L4-S3)
Perfusion: Profundus Femoris
semimembranosus mm (posterior thigh)
Origin: ischial tuberosity Insertion: Medial condyle of tibia Action: Hip EXT, leg FLX + IR Nerve: Tibial portion of sciatic (VR L4-S3) Perfusion: Profundus Femoris
biceps femoris long head mm (posterior thigh)
Origin: ischial tuberosity Insertion: head of fibula Action: Hip EXT, leg FLX + ER Nerve: Tibial portion of sciatic (VR L4-S3) Perfusion: Profundus Femoris
biceps femoris short head mm (posterior thigh)
Origin: linea aspera, lateral supracondylar line
Insertion: head of fibula
Action: Leg FLX+ ER
Nerve: common fibular division of sciatic (VR L4-S3)
Perfusion: profundus femoris
psoas major mm (trunk)
Origin: transverse processes, intervertebral disks and bodies of T12-L5
Insertion: lesser trochanter
Action: hip, trunk FLX
Nerve: Subcostal Nerve (VR T 12 , VR L1-L3)
Perfusion: 12th anterior intercostal aa/vv, 1-3 lumbar aa/vv
psoas minor mm
Origin: Bodies and intervertebral disks of T12-L1
Insertion: pectineal line/lesser trochanter?
Action: aids in trunk FLX
Nerve: Subcostal Nerve (VR T 12 , VR L1-L3)
Perfusion: 12th anterior intercostal aa/vv, 1-3 lumbar aa/vv
iliopsoas mm (trunk)
Origin: iliac fossa, ala of sacrum, transverse processes + intervertebral disks and bodies of T12-L5 Insertion: lesser trochanter Action: Hip Flx Nerve: Femoral (VR L2-L4) Perfusion: Femoral aa/vv
iliacus mm (truck)
Origin: iliac fossa, ala of sacrum (anterior sacroiliac ligament, iliac crest) Insertion: lesser trochanter Action: Hip FLX Nerve: Femoral ( VR L2-L4) Perfusion: external iliac aa/vv
Sartorius mm (anterior thigh)
Origin: Anterior- superior iliac spine Insertion: Upper medial side of tibia (pes anserinus) Action: Hip FLX + ER + ABD; leg FLX + IR Nerve: Femoral (VR L2-L4) Perfusion: Femoral aa/vv
Rectus Femoris mm (anterior thigh)
Origin: anterior-inferior iliac spine, the posterior superior rim of the acetabulum
Insertion: base of patella, tibial tuberosity
Action: Hip FLX; Leg EXT
Nerve: Femoral (VR L2-L4)
Perfusion: Femoral aa/vv
Vastus medialis mm (quadriceps femoris) (anterior thigh)
Origin: intertrochanteric line, linea aspera, medial intermuscular septum
Insertion: medial side of patella, tibial tuberosity
Action: Leg EXT
Nerve: Femoral (VR L2-L4)
Perfusion: Femoral aa/vv
Vastus Lateralis mm (quadriceps femoris) (anterior thigh)
Origin: intertrochanteric line, greater trochanter, linea aspera, gluteal tuberosity, lateral intermuscular septum
Insertion: lateral side of patella, tibial tuberosity
Action: leg EXT
Nerve: Femoral (VR L2-L4)
Perfusion: Femoral aa/vv
Vastus intermedius mm (quadrecips femoris) (anterior thigh)
Origin: upper shaft of femur, lower lateral intermuscular septum
Insertion: upper border of patella, tibial tuberosity
Action: Leg EXT
Nerve: Femoral (VR L2-L4)
Perfusion: Femoral aa/vv
Articular is Genu
Adductor Longus mm (medial thigh)
Origin: body of pubis below its crest Insertion: middle third of linea aspera Action: Hip ADD, FLX Nerve: Obturator (VR (L2-L4) Perfusion: obturator aa/vv
Adductor brevis mm (medial thigh)
Origin: body and inferior pubic ramus Insertion: pectineal line of femur, upper part of linea aspera Action: Hip ADD, FLX Nerve: Obturator (VR (L2-L4) Perfusion: obturator aa/vv
Adductor magnus mm (medial)
Origin: ischiopubic ramus, ischial tuberosity
Insertion: linea aspera, medial supracondylar line, adductor tubercle
Action: Hip ADD, EXT, FLX
Nerve: Obturator (VR (L2-L4) Sciatic (VR L4-S3)
Perfusion: obturator + profundus femoris aa/vv
Gracilis mm (medial thigh)
Origin: Body and inferior pubic ramus Insertion: medial tibia (pes anserinus Action: Hip ADD + FLX; leg FLX + IR Nerve: Obturator (VR (L2-L4) Perfusion: obturator aa/vv
Pectineus mm (medial thigh)
Origin: pectineal line of pubis Insertion: pectineal line of femur Action: Hip ADD, FLx Nerve: Femoral + obturator (VR L2-L4) Perfusion: Femoral + obturator aa/vv
Obturator Externus mm (medial thigh)
Origin: margin of obturator foramen and obturator membrane
Insertion: intertrochanteric fossa of femur
Action: Hip ER, ADD
Nerve: Obturator (VR (L2-L4)
Perfusion: obturator aa/vv
Sacrotuberous Ligament
inguinal Ligament
From anterior superior iliac spine to pubic crest
Sacrospionous ligament
Posterior Thigh muscles (4)
semitendinosus, semimembranosus, biceps femoris long head/short head
