Lower Limb Muscle Anatomy

Flashcards for muscle anatomy review.

PSOAS MAJOR (PA)

Side of T12-L5 vertebrae and discs between them; TP of all lumbar vertebrae

PSOAS MAJOR (DA)

Lesser trochanter of femur

PSOAS MAJOR (N)

Ventral rami of L1-L3

PSOAS MAJOR (A)

Hip flexion

ILIACUS (PA)

Iliac crest, iliac fossa, ala of sacrum, and anterior sacroiliac ligament

ILIACUS (DA)

Lesser of trochanter of femur

ILIACUS (N)

Femoral nerve

ILIACUS (A)

Hip flexion

RECTUS FEMORIS (PA)

AIIS and ilium superior to the acetabulum

RECTUS FEMORIS (DA)

Base of patella and tibial tuberosity via the patellar ligament

RECTUS FEMORIS (N)

Femoral nerve

RECTUS FEMORIS (A)

Knee extension, hip flexion

VASTUS LATERALIS (PA)

Greater trochanter and lateral lip of linea aspera of femur

VASTUS LATERALIS (DA)

Base of patella and tibial tuberosity via the patellar ligament

VASTUS LATERALIS (N)

Femoral nerve

VASTUS LATERALIS (A)

Knee extension

VASTUS MEDIALIS (PA)

Intertrochanteric line and medial lip of linea aspera

VASTUS MEDIALIS (DA)

Base of patella and tibial tuberosity via the patellar ligament

VASTUS MEDIALIS (N)

Femoral nerve

VASTUS MEDIALIS (A)

Knee extension

VASTUS INTERMEDIALIS (PA)

Anterior and lateral surfaces of body of femur

VASTUS INTERMEDIALIS (DA)

Base of patella and tibial tuberosity via the patellar ligament

VASTUS INTERMEDIALIS (N)

Femoral nerve

VASTUS INTERMEDIALIS (A)

Knee extension

TENSOR FASCIA LATAE (PA)

ASIS and anterior part of external lip of iliac crest

TENSOR FASCIA LATAE (DA)

Lateral condyle of tibia via IT tract (Gerdy’s tubercle)

TENSOR FASCIA LATAE (N)

Superior gluteal nerve

TENSOR FASCIA LATAE (A)

Hip abduction, internal rotation, and flexion, helps keeps knee extended, steadies trunk on thigh

SARTORIUS (PA)

ASIS

SARTORIUS (DA)

superior part of medial tibia (Pes Anserine)

SARTORIUS (N)

femoral nerve

SARTORIUS (A)

hip flexion, abduction, external rotation, knee flexion

PECTINEUS (PA)

Pectin pubis, superior ramus of pubis

PECTINEUS (DA)

Pectineal line of femur

PECTINEUS (N)

Femoral nerve

PECTINEUS (A)

Hip flexion and adduction

ADDUCTOR LONGUS (PA)

Body of pubis inferior to pubic crest

ADDUCTOR LONGUS (DA)

Middle third of linea aspera

ADDUCTOR LONGUS (N)

Obturator nerve

ADDUCTOR LONGUS (A)

Hip adduction

ADDUCTOR MAGNUS (Hamstring Portion PA)

Ischial tuberosity

ADDUCTOR MAGNUS (Hamstring Portion DA)

Adductor tubercle of femur

ADDUCTOR MAGNUS (Hamstring Portion N)

Tibial portion of sciatic nerve

ADDUCTOR MAGNUS (Hamstring Portion A)

Hip extension

ADDUCTOR MAGNUS (Adductor Portion PA)

Inferior ramus of pubis, ramus of ischium

ADDUCTOR MAGNUS (Adductor Portion DA)

Gluteal tuberosity, linea aspera, medial supracondylar line

ADDUCTOR MAGNUS (Adductor Portion N)

Obturator nerve

ADDUCTOR MAGNUS (Adductor Portion A)

Hip adduction and flexion

GRACILIS (PA)

Body and inferior ramus of pubis

GRACILIS (DA)

Superior part of medial tibia (Pes Anserine)

GRACILIS (N)

Obturator nerve

GRACILIS (A)

Hip flexion, adduction, and internal rotation, knee flexion

SEMITENDINOSUS (PA)

Ischial tuberosity

SEMITENDINOSUS (DA)

Superior part of medial tibia (Pes Anserine)

SEMITENDINOSUS (N)

Tibial portion of sciatic nerve

SEMITENDINOSUS (A)

Hip extension, knee flexion

SEMIMEMBRANOSUS (PA)

Ischial tuberosity

SEMIMEMBRANOSUS (DA)

Medial condyle of tibia

SEMIMEMBRANOSUS (N)

Tibial portion of sciatic nerve

SEMIMEMBRANOSUS (A)

Hip extension, knee flexion

BICEPS FEMORIS (Short Head PA)

Linea aspera of the femur

BICEPS FEMORIS (Short Head DA)

Medial condyle of tibia

BICEPS FEMORIS (Short Head N)

Common fibular portion of sciatic nerve

BICEPS FEMORIS (Short Head A)

Hip extension, knee flexion

BICEPS FEMORIS (Long Head PA)

Ischial tuberosity

BICEPS FEMORIS (Long Head DA)

Head of fibula, lateral condyle of tibia

BICEPS FEMORIS (Long Head N)

Tibial portion of sciatic nerve

BICEPS FEMORIS (Long Head A)

Hip extension, knee flexion, knee lateral rotation (when knee is flexed)

GLUTEUS MAXIMUS (PA)

Ilium posterior to posterior gluteal line, sacrum, coccyx, and sacrotuberous ligament

GLUTEUS MAXIMUS (DA)

Iliotibial tract, some fibers insert on gluteal tuberosity

GLUTEUS MAXIMUS (N)

Inferior gluteal nerve

GLUTEUS MAXIMUS (A)

Hip extension, abduction, and external rotation

GLUTEUS MEDIUS (PA)

Gluteal surface of ilium

GLUTEUS MEDIUS (DA)

Greater trochanter of femur

GLUTEUS MEDIUS (N)

Superior gluteal nerve

GLUTEUS MEDIUS (A)

Hip abduction, internal rotation, stabilize pelvis in unilateral standing

GLUTEUS MINIMUS (PA)

Gluteal surface of ilium between anterior and inferior gluteal lines

GLUTEUS MINIMUS (DA)

Greater trochanter of femur

GLUTEUS MINIMUS (N)

Superior gluteal nerve

GLUTEUS MINIMUS (A)

Hip abduction, internal rotation, stabilize pelvis in unilateral standing

PIRIFORMIS (PA)

Anterior surface of sacrum and sacrotuberous ligament

PIRIFORMIS (DA)

Superior border of greater trochanter of femur

PIRIFORMIS (N)

Branches of ventral rami S1-S2

PIRIFORMIS (A)

Hip abduction, external rotation, steadies femoral head in acetabulum

SUPERIOR GEMELLUS (PA)

Ischial spine

SUPERIOR GEMELLUS (DA)

Trochanteric fossa

SUPERIOR GEMELLUS (N)

Nerve to obturator internus

SUPERIOR GEMELLUS (A)

Hip lateral rotation

INFERIOR GEMELLUS (PA)

Ischial tuberosity

INFERIOR GEMELLUS (DA)

Trochanteric fossa

INFERIOR GEMELLUS (N)

Nerve to quadratus femoris

INFERIOR GEMELLUS (A)

Hip lateral rotation

OBTURATOR INTERNUS (PA)

Pelvic surface of obturator membrane and surrounding bones

OBTURATOR INTERNUS (DA)

Trochanteric fossa

OBTURATOR INTERNUS (N)

Nerve to obturator internus

OBTURATOR INTERNUS (A)

Hip lateral rotation, hip abduction when hip is flexed

OBTURATOR EXTERNUS (PA)

Obturator foramen and membrane

OBTURATOR EXTERNUS (DA)

Trochanteric fossa

OBTURATOR EXTERNUS (N)

Obturator nerve

OBTURATOR EXTERNUS (A)

Hip adduction and external rotation