53 terms

Lower Limb

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Gluteus maximus
O: ilium, sacrum, coccyx, sacrotuberous ligament
I: gluteal tuberosity of femur, iliotibial tract
A: extension and lateral rotation of hip/thigh
N: inferior gluteal n.
B: superior and inferior gluteal arteries
Gluteus medius
O: ilium
I: greater trochanter of femur
A: abducts thigh, pelvic stabilizer
N: superior gluteal n.
B: superior gluteal a.
Gluteus minimus
O: ilium
I: greater trochanter of femur
A: abducts thigh, pelvic stabilizer
N: superior gluteal n.
B: superior gluteal a.
Tensor fascia latae
O: ASIS
I: iliotibial tract
A: flexion, medial rotation, abduction of thigh
N: superior gluteal n.
B: lateral circumflex femoral a.
Piriformis
O: sacrum
I: greater trochanter of femur
A: lateral rotation of thigh
N: Nerve to piriformis
B: inferior gluteal, lateral sacral, and superior gluteal arteries
Obturator internus
O: obturator foramen and inner obturator membrane
I: greater trochanter of femur
A: lateral rotation and abduction of thigh
N: Nerve to obturator internus
B: superior gluteal a.
Superior Gemellus
O: ischial spine
I: greater trochanter of femur
A: lateral rotation and abduction of thigh
N: Nerve to obturator internus
B: inferior gluteal a.
Inferior Gemellus
O: ischial tuberosity
I: greater trochanter of femur
A: lateral rotation and abduction of thigh
N: Nerve to quadratus femoris
B: inferior gluteal a.
Quadratus femoris
O: ischial tuberosity
I: intertrochanteric crest
A: lateral rotation of thigh
N: Nerve to quadratus femoris
B: inferior gluteal a.
Obturator externus
O: obturator foramen and obturator membrane
I: trochanteric fossa
A: lateral rotation and adduction of thigh
N: obturator n.
B: obturator a.
Psoas major
O: L1-L5
I: lesser trochanter of femur
A: flexes hip joint and trunk
N: lumbar n. 1-3
B: lumbar branch of iliolumbar a.
Psoas minor
O: bodies of T12 and L1
I: pectineal line
A: flexes trunk (weak)
N: lumbar n. L1
Iliacus
O: iliac fossa
I: lesser trochanter of femur
A: flexes hip joint
N: femoral n.
B: medial femoral circumflex a.
Sartorius
O: ASIS
I: upper medial tibia (pes anserinus)
A: flexes thigh and leg
N: femoral n.
B: femoral a.
Rectus femoris
O: AIIS
I: tibial tuberosity
A: extension of leg, flexion of thigh
N: femoral n.
B: lateral femoral circumflex a.
Vastus lateralis
O: lateral linea aspera
I: tibial tuberosity
A: extension of leg/knee
N: femoral n.
B: femoral a.
Vastus medialis
O: medial linea aspera
I: tibial tuberosity
A: extension of leg/knee
N: femoral n.
B: femoral a.
Vastus intermedius
O: anterior shaft of upper femur
I: tibial tuberosity
A: extension of leg/knee
N: femoral n.
B: femoral a.
Gracilis
O: ischiopubic ramus
I: upper medial tibia (pes anserinus)
A: flexes, medially rotates, and adducts hip
N: obturator n.
B: medial circumflex femoral a.
Pectineus
O: superior pubic ramus
I: upper post. femur
A: adducts, flexes, medially rotates thigh
N: femoral and obturator nerves
B: obturator a.
Adductor longus
O: pubis
I: linea aspera
A: adducts, flexes hip
N: obturator n.
B: deep femoral a.
Adductor brevis
O: inferior pubic ramus
I: lesser trochanter and linea aspera
A: adducts hip
N: obturator n.
B: deep femoral a.
Adductor magnus
O: pubis, ischial tuberosity
I: linea aspera, adductor tubercle
A: adducts, flexes, and extends hip
N: obturator and tibial nerves
B: deep femoral a.
Biceps femoris long head
O: ischial tuberosity
I: head of fibula, lateral condyle of tibia
A: flexes leg, extends thigh
N: tibial n.
B: inferior gluteal and popliteal arteries
Biceps femoris short head
O: linea aspera
I: head of fibula, lateral condyle of tibia
A: flexes leg ONLY
N: common fibular n.
B: popliteal a.
Semitendinosus
O: ischial tuberosity
I: upper medial tibia (pes anserinus)
A: flexes leg, extends thigh
N: tibial n.
B: inferior gluteal a.
Semimembranosus
O: ischial tuberosity
I: medial tibia
A: flexes leg, extends thigh
N: tibial n.
B: deep femoral a.
Tibialis anterior
O: lateral condyle tibia, interosseus membrane
I: 1st cuneiform and 1st metatarsal
A: dorsiflexes and inverts foot
N: deep fibular n.
B: anterior tibial a.
Extensor digitorum longus
O: lat condyle tibia, upper fibula, interosseus membrane
I: dorsal middle and distal phalanges of digits 2-5
A: extends digits 2-5, dorsiflexes foot
N: deep fibular n.
B: anterior tibial a.
Extensor hallucis longus
O: fibula, interosseus membrane
I: base of distal phalanx of hallux
A: extends hallux, dorsiflexes foot
N: deep fibular n.
B: anterior tibial a.
Extensor hallucis brevis
O: calcaneus
I: prox. phalanx of hallux
A: extend big toe
N: deep fibular n.
B: dorsalis pedis a.
Fibularis tertius
O: lower fibula, interosseus membrane
I: base 5th metatarsal
A: dorsiflexes and everts foot
N: deep fibular n.
B: anterior tibial a.
Fibularis longus
O: head and upper fibula
I: base of 1st metatarsal, 1st cuneiform
A: plantar flexes and everts foot
N: superficial fibular n.
B: fibular a.
Fibularis brevis
O: lower lateral fibula
I: base of 5th metatarsal
A: plantar flexes and everts foot
N: superficial fibular n.
B: fibular a.
Gastrocnemius
O: medial and lateral femoral condyles
I: posterior calcaneus via calcaneal tendon
A: flexes leg, plantar flexes foot
N: tibial n.
B: sural arteries
Soleus
O: upper fibula, soleal line
I: posterior calcaneus via calcaneal tendon
A: plantar flexes foot
N: tibial n.
B: sural arteries
Plantaris
O: posterior femur
I: posterior calcaneus
A: flexes leg, plantar flexes foot
N: tibial n.
B: sural arteries
Popliteus
O: lateral femoral condyle
I: upper posterior tibia
A: flexes leg, rotates tibia medially (unlocks knee)
N: tibial n.
B: popliteal a.
Flexor hallucis longus
O: lower fibula, interosseus membrane
I: base of distal phalanx of hallux
A: flexes hallux, plantar flexes foot
N: tibial n.
B: fibular a.
Flexor digitorum longus
O: posterior tibia
I: base of distal phalanges of digits 2-5
A: flexes digits 2-5, plantar flexes foot
N: tibial n.
B: posterior tibial a.
Tibialis posterior
O: posterior interosseus membrane, tibia, fibula
I: navicular, cuneiforms, cuboid, metatarsals 2-4
A: plantar flexes and inverts foot
N: tibial n.
B: posterior tibial a.
Extensor digitorum brevis
O: calcaneus
I: base of proximal phalanx of hallux, extensor digitorum longus tendons digits 1-4
A: extends digits 1-4
N: deep fibular n.
B: dorsalis pedis a.
Abductor hallucis
O: calcaneus and flexor retinaculum
I: proximal phalanx of hallux
A: abducts hallux
N: medial plantar n.
B: medial plantar a.
Flexor digitorum brevis
O: calcaneus and plantar aponeurosis
I: middle phalanges of digits 2-5
A: flexes digits 2-5
N: medial plantar n.
Abductor digiti minimi
O: calcaneus and plantar aponeurosis
I: base of proximal phalanx of 5th digit
A: abducts 5th digit
N: lateral plantar n.
B: lateral plantar a.
Quadratus plantae
O: calcaneus
I: tendon of flexor digitorum longus
A: flexes digits 2-5
N: lateral plantar n.
Lumbricals
O: tendons of flexor digitorum longus
I: tendons of extensor digitorum longus
A: flex MP joints 2-5, extend IP joints 2-5
N: medial and lateral plantar nerves
B: medial and lateral plantar arteries
Flexor hallucis brevis
O: cuboid and lateral cuneiform
I: proximal phalanx of hallux
A: flexes hallux
N: medial plantar n.
Adductor hallucis
O: metatarsals 2-4
I: proximal phalanx of hallux
A: adducts hallux
N: lateral plantar n.
B: lateral plantar a.
Flexor digiti minimi brevis
O: 5th metatarsal
I: proximal phalanx of 5th digit
A: flexes 5th digit
N: lateral plantar n.
Dorsal interossei
O: bases metatarsals 3-5
I: proximal phalanges of digits 3-5
A: abducts toes
N: lateral plantar n.
Plantar interossei
O: bases of metatarsals
I: proximal phalanges of digits 2-4
A: adduct toes
N: lateral plantar n.
Is dorsiflexion actually flexion or extension?
Extension
Plantar flexion is true flexion