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Anatomy > LE Muscle Chart > Flashcards

LE Muscle Chart Flashcards

1
Q

Iliacus

A

Origin: Iliac fossa
Insertion: Lesser trochanter
Action: Flex hip, ER hip
Innervation: Femoral Nerve

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2
Q

Sartorius

A

Origin: Anterior Superior Iliac Spine
Insertion: Medial to tibial tuberosity via Pes Anserinus
Action: Flex hip, Abduct (Abd) hip, ER hip, flex knee, internally rotate (IR) tibia
Innervation: Femoral nerve

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3
Q

Gluteus Maximus (Upper)

A

Origin: Sacrum, Posterior iliac crest, thoracolumbar fascia
Insertion: Iliotibial tract
Action: Extend hip, ER hip, Abduct Hip
Innervation: Inferior gluteal nerve

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4
Q

Gluteus Maximus (lower)

A

Origin: Sacrum, thoracolumbar fascia, sacrotuberous ligament
Insertion: Gluteal tuberosity
Action: Extend hip, ER hip, Adduct (Add) hip
Innervation: Inferior gluteal nerve

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5
Q

Gluteus Medius

A

Origin: Superior gluteal surface of Ilium
Insertion: Greater trochanter
Action: Abd hip, Ant: flexion, IR hip, Post: extension, ER hip
Innervation: Superior gluteal nerve

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6
Q

Psoas Major

A

Origin: Lateral Surface of T12-L4 vertebral bodies
Insertion: Lesser Trochanter
Action: Flex hip, ER of hip, flex lumbar spine, ipsilateral flex spine
Innervation: L1-L3 direct branches from lumbar plexus

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7
Q

Gluteus Minimus

A

Origin: Inferior gluteal surface of ilium
Insertion: Greater trochanter
Action: Abd hip, Ant. flex and IR hip, Post. Ext and ER hip
Innervation: Superior gluteal nerve

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8
Q

Tensor Fasciae Latae

A

Origin: Anterior superior iliac spine
Insertion: Iliotibial tract
Action: Tenses fascia latae, Abd hip, Flex hip, IR hip
Innervation: Superior gluteal nerve

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9
Q

Piriformis

A

Origin: Ant. surface sacrum
Insertion: Greater trochanter
Action: ER hip, Abd hip, Ext hip
Innervation: L5-S2 direct branches from sacral plexus

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10
Q

Gemellus superior

A

Origin: Ischial spine
Insertion: Medial greater trochanter
Action: ER hip, Add hip 30 degrees Abd, Ext. hip
Innervation: L5, S1 direct branches from sacral plexus

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11
Q

Obturator Internis

A

Origin: Inner surface of obturator membrane
Insertion: Medial greater trochanter
Action: ER hip, Add hip 30 degrees Abd, Ext. hip
Innervation: L5, S1 direct branches from sacral plexus

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12
Q

Gemellus Inferior

A

Origin: Ischial tuberosity
Insertion: Medial greater trochanter
Action: ER hip, Add hip 30 degrees Abd, Ext. hip
Innervation: L5, S1 direct branches from sacral plexus

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13
Q

Obturator externis

A

Origin: Outer surface of obturator membrane
Insertion: Trochanteric fossa
Action: ER hip, Add hip
Innervation: Obturator nerve

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14
Q

Quadratus femoris

A

Origin: Ischial tuberosity
Insertion: Intertrochanteric crest
Action: ER hip, Add hip
Innervation: L5, S1 direct branches from sacral plexus

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15
Q

Pectineus

A

Origin: Superior pubic ramus
Insertion: pectineal line
Action: add hip, IR hip, flex hip
Innervation: femoral nerve

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16
Q

Adductor longus

A

Origin: superior pubic ramus
Insertion: medial lip of linea aspera
Action: adduct hip, IR hip, flex hip
Innervation: obturator nerve

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17
Q

Adductor brevis

A

Origin: Inferior pubic ramus
Insertion: Medial lip of linea aspera
Action: Add hip, flex hip, IR hip
Innervation: Obturator nerve

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18
Q

Adductor magnus (anterior)

A

Origin: Inferior pubic ramus, ischial ramus
Insertion: Medial lip of linea aspera
Action: Add hip, Ant: IR hip, Ant: flex hip
Innervation: Obturator nerve

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19
Q

Adductor magnus (posterior)

A

Origin: Ischial ramus, ischial tuberosity
Insertion: Adductor tubercle of femur
Action: Add hip, Post: ER hip, Post: Ext hip
Innervation: Tibial nerve

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20
Q

Gracilis

A

Origin: Inferior pubic ramus
Insertion: Medial to tibial tuberosity via Pes Anserinus
Action: Add hip, flex hip, flex knee, IR tibia
Innervation: Obturator nerve

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21
Q

Rectus Femoris

A

Origin: AIIS, acetabular roof
Insertion: Tibial tuberosity via patellar ligament
Action: flex hip, ext. knee
Innervation: Femoral nerve

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22
Q

Vastus Medialis

A

Origin: Medial lip of linea aspera
Insertion: Tibial tuberosity via patellar ligament
Action: ext. knee
Innervation: Femoral nerve

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23
Q

Vastus lateralis

A

Origin: lateral lip of linea aspera
Insertion: tibial tuberosity via patellar ligament
Action: Ext. knee
Innervation: Femoral nerve

24
Q

Vastus Intermedius

A

Origin: Anterior femur
Insertion: Tibial tuberosity via patellar ligament
Action: ext. knee
Innervation: Femoral nerve

25
Q

Biceps Femoris (long head)

A

Origin: Ischial tuberosity
Insertion: head of fibula
Action: Ext. hip, flex knee, ER tibia
Innervation: Tibial nerve

26
Q

Biceps Femoris (short head)

A

Origin: Lateral lip of linea aspera
Insertion: head of fibula
Action: Flex knee, ext. rot. tibia
Innervation: common fibular nerve

27
Q

Semi-membranosus

A

Origin: Ischial tuberosity
Insertion: Medial tibial condyle
Action: Ext. hip, flex knee, IR tibia
Innervation: Tibial nerve

28
Q

Semitendinosus

A

Origin: Ischial tuberosity
Insertion: Medial to tibial tuberosity via Pes Anserinus
Action: Ext. hip, flex knee, IR tibia
Innervation: Tibial nerve

29
Q

Popliteus

A

Origin: Lateral femoral condyle
Insertion: Post. tibial surface
Action: Flex knee, IR tibia, ER femur
Innervation: Tibial nerve

30
Q

Tibialis anterior

A

Origin: upper lateral tibia, interosseosus (IO) membrane
Insertion: medial cuneiform
Action: dorsiflex ankle, invert intertarsal (IT)(subtalar joint(STJ))
Innervation: Deep fibular nerve

31
Q

Extensor digitorum longus

A

Origin: anterior fibula, lateral tibial condyle, IO membrane
Insertion: base of middle and distal phalanges 2-5
Action: DF ankle, evert IT (STJ), ext metatarsal-phalangeal (MTP)/interphalangeal (IP) 2-5
Innervation: deep fibular nerve

32
Q

Extensor hallucis longus

A

Origin: medial fibula, IO membrane
Insertion: base of 1st distal phalanx
Action: DF ankle, evert/invert IT (STJ), ext MTP/IP 1
Innervation: deep fibular nerve

33
Q

Fibularis (peroneus) longus

A

Origin: proximal lateral fibula, head of fibula
Insertion: medial cuneiform, base of 1st metatarsal (MT)
Action: plantar flex (PT) ankle, evert IT (STJ)
Innervation: superficial fibular nerve

34
Q

Fibularis (peroneus) brevis

A

Origin: Distal lateral fibula, IO membrane
Insertion: Base of 5th MT
Action: PF ankle, evert IT (STJ)
Innervation: Superficial fibular nerve

35
Q

Fibularis (peroneus) tertius

A

Origin: Distal anterior fibula w/ EDL
Insertion: Base of 5th MT
Action: DF ankle, evert IT (STJ)
Innervation: Deep fibular nerve

36
Q

Soleus

A

Origin: Soleal line of tibia, head/neck of fibula
Insertion: Calcaneal tuberosity via Achilles tendon
Action: PF ankle, invert IT (STJ)
Innervation: Tibial nerve

37
Q

Gastrocnemius

A

Origin: Medial and lateral epicondyles of femur
Insertion: Calcaneal tuberosity via Achilles tendon
Action: PF ankle, invert IT (STJ), flex knee
Innervation: Tibial nerve

38
Q

Plantaris

A

Origin: Lateral epicondyle of femur
Insertion: Calcaneal tuberosity via Achilles tendon
Action: Small contributor PF ankle, invert IT (STJ), flex knee
Innervation: Tibial nerve

39
Q

Tibialis Posterior

A

Origin: Posterior tibia, IO membrane, posterior fibula
Insertion: Navicular, medial, lateral, and intermediate cuneiforms, base of MT 2-4
Action: PF ankle, invert IT (STJ)
Innervation: Tibial nerve

40
Q

Flexor digitorum longus

A

Origin: Middle posterior tibia
Insertion: Base of distal phalanges 2-5
Action: PF ankle, invert IT (STJ), flex MTP, flex IP 2-5
Innervation: Tibial nerve

41
Q

Flexor hallucis longus

A

Origin: Distal posterior fibula
Insertion: base of 1st distal phalanx
Action: PF ankle, invert IT (STJ), flex MTP 1, flex IP 1
Innervation: Tibial nerve

42
Q

Extensor digitorum brevis

A

Origin: Dorsal surface calcaneus
Insertion: Base of middle phalanges 2-4
Action: Ext MTP 2-4, Ext. proximal interphalangeal (PIP) 2-4
Innervation: Deep fibular nerve

43
Q

Extensor hallucis brevis

A

Origin: Dorsal surface calcaneus
Insertion: Base of 1st proximal phalanx
Action: Ext MTP 1
Innervation: Deep fibular nerve

44
Q

Abductor hallucis

A

Origin: Medial calcaneus
Insertion: Base of 1st proximal phalanx
Action: Abd MTP 1, flex MTP 1
Innervation: Medial plantar nerve

45
Q

Flexor hallucis brevis (med head)

A

Origin: Medial cuneiform
Insertion: Base of 1st proximal phalanx
Action: Flex MTP 1
Innervation: Medial plantar nerve

46
Q

Flexor hallucis brevis (lat. head)

A

Origin: intermediate cuneiform
Insertion: base of 1st proximal phalanx
Action: flex MTP 1
Innervation: Lateral plantar nerve

47
Q

Adductor hallucis (oblique head)

A

Origin: Base MTs 2-4, cuboid, lateral cuneiform
Insertion: Base of 1st proximal phalanx
Action: add MTP 1, flex MTP 1
Innervation: Lateral plantar nerve

48
Q

Adductor hallucis (transverse head)

A

Origin: Deep transverse MT lig, MTP 3-5
Insertion: Base of 1st prox. phalanx
Action: Add MTP 1, support transverse arch
Innervation: Lat. plantar nerve

49
Q

Abductor digiti minimi

A

Origin: Lateral calcaneal tuberosity
Insertion: Base of 5th prox. phalanx
Action: Abd MTP 5, flex MTP 5
Innervation: Lat. plantar nerve

50
Q

Flexor Digiti Minimi

A

Origin: Base of 5th MT
Insertion: Base of 5th prox. phalanx
Action: Flex MTP 5
Innervation: Lat. plantar nerve

51
Q

Flexor digitorum brevis

A

Origin: calcaneal tuberosity
Insertion: middle phalanges 2-5
Action: flex MTP 2-5, flex PIP 2-5
Innervation: Medial plantar nerve

52
Q

Quadratus plantae

A

Origin: calcaneal tuberosity
Insertion: lat. border of FDL tendon
Action: redirects and augments pull of FDL
Innervation: Lat. plantar nerve

53
Q

Lumbricals (1-4)

A

Origin: medial border FDL tendons
Insertion: dorsal aponeuroses 2-5
Action: flex MTP 2-5, Ext IP 2-5, Add MTP 3-5, Abd MTP 2
Innervation: 1st lumbrical (med. plantar nerve), 2-4 lumbricals (lat. plantar nerve)

54
Q

Plantar interossei (1-3)

A

Origin: medial border of MT 3-5
Insertion: medial base of prox. phalanges 3-5
Action: Add MTP 3-5
Innervation: Lat. plantar nerve

55
Q

Dorsal interossei (1-4)

A

Origin: two heads from opposing sides of MT 1-5
Insertion: 1st interosseus (medial base of 2nd prox. phalanx), 2-4 interossei (lat. base of prox. phalanges 2-4)
Action: Abd MTP 2-4
Innervation: Lat. plantar nerve

Anatomy (12 decks)

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