Hip/Pelvis Muscles Flashcards by Dan Wager

Tensor Fasciae Latae

PA: Anterior iliac crest, lateral surface of ASIS and a portion of the border of the notch below it

DA: Iliotibial band and hence to the lateral tibial condyle at Gerdy’s tubercle of the tibia

Innervation: Superior gluteal nerve L4, L5, S1

Actions: Extends and External Rotation of the knee; Flexes abducts, and Internally rotates the hip; Dynamic stabilization of the knee

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Biceps Femoris

PA: Long head = Upper ischial tuberosity
Short head = lateral lip of linea aspera inferior to the gluteus maximus attachment; proximal 1/2 of the lateral supracondylar line

DA: Fibular head, LCL of knee, lateral tibial condyle

Innervation: Long Head= tibial division of sciatic L5, S1, S2
Short head: common peroneal division of sciatic L5, S1, S2

Actions: Flexes the knee, extends the hip; secondarily laterally rotates hip and knee

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Semitendinosus

PA: Inferomedial aspect of ischial tuberosity

DA: Medial aspect of proximal tibia at pes anserine

Innervation: Tibial division of sciatic nerve L5, S1, S2

Actions: Flexes knee, extends hip; secondarily medially rotates hip and knee

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Semimembranosus

PA: Superolateral aspect of ischial tuberosity

DA: Posterior aspect of medial tibial condyle

Innervation: Tibial division of Sciatic nerve L5, S1, S2

Actions: Flexes knee, extends hip, secondarily medially rotates hip and knee

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Pectineus

PA: pectineal line on superior ramus of pubis

DA: pectineal line between the lesser trochanter and the line aspera

Innervation: Femoral nerve L2, L3

Actions: Hip Adduction and flexion

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Adductor Brevis

PA: Inferior rams of pubis

DA: Pectineal line and proximal 1/2 of medial lip of linea aspera

Innervation: Obturator nerve L2, L3

Actions: Adducts hip

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Adductor Longus

PA: Anterior pubic body

DA: Middle 1/3 of medial lip of linea Aspera

Innervation: Obturator nerve L2 - L4

Actions: Hip adduction and flexion

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Adductor Magnus

PA: Inferior ramus of pubis, inferior ramus of ischium and ischial tuberosity

DA: Linea Aspera, medial supracondylar line and adductor tubercle

Innervation: Obturator and tibial division of Sciatic L2-L4

Actions: Hip Adduction and extension

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Gracilis

PA: Lower 1/2 of Pubic body, lower aspect of inferior pubic ramus and adjoining ischial ramus

DA: Proximal medial surface of the tibia at the Pes Anserine

Innervation: Obturator nerve L2, L3

Actions: Flexes and medially rotates the knee; Adducts the hip

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Piriformis

PA: Anterior surface of sacrum at levels S2-S4

DA: Superior and medial aspect of greater trochanter

Innervation: Ventral Rami L5, S1, S2

Actions: Hip External Rotation; Abducts a flexed hip

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Quadratus Femoris

PA: Lateral border of the ischial tuberosity

DA: Intertrochanteric crest and quadrate tubercle of femur

Innervation: Nerve to quadratus muscle L4-S1

Actions: Hip External rotation

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Gluteus Maximus

PA: Posterior gluteal line of ilium, posterior sacrum and sacrotuberous ligament

DA: Gluteal tuberosity of femur and IT band

Innervation: Inferior gluteal nerve L5, S1, S2

Actions: Hip extension, abduction and external rotation; assists in stabilization of the knee through action of the IT band

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Gluteus Medius

PA: lateral ilium between posterior and anterior gluteal lines

DA: lateral aspect of greater trochanter

Innervation: Superior gluteal nerves L4-S1

Actions:
All Fibers: hip abduction
Posterior fibers: ER
Anterior Fibers: IR
Single Limb support: keeps pelvis level(trendelenburg sign)

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Gluteus Minimus

PA: Lateral ilium deep to gluteus medius between anterior and inferior gluteal line

DA: Anterolateral aspect of greater trochanter

Innervation: Superior gluteal nerves L4-S1

Actions: Hip abduction, Internal rotation

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Rectus Femoris

PA:
Straight Head: AIIS
Reflected Head: groove on ilium superior to acetabulum and fibrous capsule of hip joint

DA: Patella by quadriceps tendon, tibial tuberosity by patellar tendon(ligament)

Innervation: Femoral nerve L2-L4

Actions: Extends knee and Flexes the hip

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Sartorius

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PA: ASIS

DA: Proximal Medial surface of the tibia at the Pes Anserine

Innervation: Femoral nerve L2-L3

Actions: Flexes, ER and abducts the hip; Flexes and Internally rotates the knee

Iliacus

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PA: Superior 2/3 of iliac fossa; Anterior SI ligaments

DA: lesser trochanter

Innervation: Femoral nerve L2-L3

Actions: Flexes hip and External rotates the flexed hip

Psoas Major

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PA: Transverse processes, Vertebral bodies and adjoining discs of T12-L5

Da: Lesser trochanter

Innervation: Ventral Rami of L1-L3

Actions: Hip flexion and external rotation; Trunk ipsilateral SB; spinal flexion during sit ups and spinal stabilization

Vastus Lateralis

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PA: Intertrochanteric line; anterior and inferior borders of the greater trochanter; lateral lip of gluteal tuberosity; proximal 1/2 of linea aspera; and intermuscular septum

DA: Lateral patella by quads tendon; tibial tuberosity by patellar tendon; blends with lateral aspect of fibrous joint capsule of the knee

Innervation: Femoral n. L2, 3, 4

Actions: Extends knee and stabilizes the patella

Vastus Intermedius

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PA: Proximal 2/3 of femur along anterior and lateral surfaces; distal aspect of lateral inter muscular septum

DA: Patella by quads tendon; tibial tuberosity by patellar tendon

Innervation: Femoral n. L2,3,4

Actions: Extends the knee

Vastus Medialis

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PA: Medial intertrochanteric line; medial lip of linea aspera; proximal 2/3 supracondylar line; medial inter muscular septum; VMO arises from tendon of adductor magnus

DA: Medial patella by quad tendon; tibial tuberosity by patellar tendon; blends with medial aspect of fibrous joint capsule of knee

Innervation: Femoral n. L2,3,4

Actions: Extends the knee; stabilizes the patella

Articularis Genu

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PA: Distal anterior aspect of femur

DA: Suprapatellar bursa

Innervation: Femoral n. L2,3,4

Actions: Prevents impingement of the bursa during knee extension

Popliteus

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PA: Lateral femoral condyle on an impression on the distal most portion of the lateral supracondylar line

DA: Triangular area on the posterior tibia proximal to the soleal line

Innervation: Tibial n. L4, L5, S1

Actions: Unlocks the extended knee; OKC=IR of tibia; CKC=ER of femur

Plantaris

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PA: Distal aspect of the lateral supracondylar line of the femur and the oblique popliteal ligament

DA: Posterior aspect of calcanues

Innervation: Tibial n. S1, S2

Actions: Weakly Plantar flexes the ankle

Extensor Digitorum Longus

PA: Lateral tibial condyle; medial surface of the fibula along its proximal 3/4; adjoining interosseus membrane DA: Distal phalanges of lesser four digits Innervation: Deep peroneal L5, S1 Actions: Extends the 4 lesser digits; Dorsiflexes the ankle and foot

Extensor Hallucis Longus

PA: Medial surface of the fibula along its middle half; adjacent interosseus membrane DA: Base of distal phalanx of great toe along its dorsal surface Innervation: Deep peroneal L5 Actions: Extends the hallux; dorsiflexes the ankle and foot

Tibialis Anterior

PA: Lateral condyle of the tibia; lateral surface of the tibia along its proximal 2/3; adjoining interosseus membrane DA: Medial cuneiform and 1st MT base Innervation: Deep perineal L4, L5 Actions: Dorsiflexes the ankle; Inverts the foot

Gastrocnemius

PA: Medial head= posterior surface of the medial femoral condyle and adjacent part of femur Lateral head= lateral femoral condyle and adjoining supracondylar line DA: Middle part of the posterior surface of the calcaneus Innervation: Tibial n. S1, S2 Actions: Plantarflexes the ankle; flexes the knee; along with the soles controls anterior tibial advancement during gait

Soleus

PA: Posterior aspect of the fibular head and proximal quarter of its body; soleal line and middle third of tibial medial border DA: With tendon of the gastrocnemius into posterior surface of the calcaneus Innervation: Tibial n. S1, S2 Actions: Plantarflexes the ankle

Peroneus Longus

PA: Head of fibula; lateral surface of the fibula along its proximal 2/3; inter muscular septa DA: Medial cuneiform and 1st MT base along their lateral and plantar surfaces Innervation: Superficial peroneal L5, S1, S2 Actions: Everts the foot, plantar flexes the foot and ankle; plantar flexes 1st Ray

Peroneus Brevis

PA: Lateral surface of the fibula along its distal 2/3; Intermuscular septa DA: 5 MT base at its lateral tubercle Innervation: Superficial peroneal L5, S1, S2 Actions: Everts the foot

Peroneus Tertius

PA: Medial surface of the fibula along its distal third; adjoining interosseus membrane DA: Base of the 5th MT along its dorsal surface Innervation: Deep perineal L5, S1 Actions: Dorsiflexes the foot and ankle; everts the foot

Tibialis Posterior

PA: Most of the interosseus membrane; lateral portion of posterior surface of the tibia; proximal 2/3 of medial surface of fibula DA: Navicual tuberosity; sustentaculum tali; plantar surface of the medial and intermediate cuneiforms and bases of the 2-4 MT Innervations: tibial n. L4, L5 Actions: Inverts the foot (principle inverter); plantar flexes the foot and ankle

Flexor Digitorum Longus

PA: Medial part of the posterior surface of the tibia inferior to the soleal line and fascia covering tibialis posterior DA: Distal phalanges of the 4 lesser toes along their plantar aspects Innervations: Tibial n. S1, S2 Actions: Flexes the phalanges; plantar flexes the ankle

Flexor Hallucis Longus

PA: Posterior surface of the distal 2/3 of fibula; interosseus membrane and the posterior inter muscular septum DA: Plantar aspect of the distal phalanx of the hallux Innervation: tibial n. S1, S2 Actions: Flexes the great toe; plantar flexes the ankle

Hip/Pelvis Muscles Flashcards

(35 cards)