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Lower Extremity Anatomy II > LEA Quiz 8 Muscles > Flashcards

LEA Quiz 8 Muscles Flashcards

1
Q

origin of the extensor digitorum brevis

A

sinus tarsi, superolateral calcaneus, interoessous talocalcaneal ligament, cruciate crural ligament

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2
Q

insertion of the EDB

A

lateral aspect of EDL tendons 2-4

  • 1st tendon goes to 2nd digit
  • 2nd tendon to 3rd digit
  • 3rd tendon to 4th digit
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3
Q

nerve to EDB

A

lateral terminal branch of deep fibular

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4
Q

blood supply to EDB

A

lateral tarsal artery

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5
Q

function of the EDB

A

dorsiflex toes 2-4

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6
Q

extensor hallucis brevis origin

A

sinus tarsi, superolateral calcaneus, interoessous talocalcaneal ligament, cruciate crural ligament

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7
Q

extensor hallucis brevis insertion

A

dorsal aspect of the proximal phalanx of hallux

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8
Q

extensor hallucis brevis nerve

A

lateral terminal branch of deep fibular

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9
Q

extensor hallucis brevis blood

A

lateral tarsal artery

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10
Q

extensor hallucis brevis fxn

A

dorsiflex hallux

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11
Q

proximal attachment of the medial band of plantar fascia

A

medial tubercle of calcanea tuberosity

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12
Q

distal attachment of the medial band of plantar fascia

A

not bony, blends with fascia- fascia dorsals pedis, inferior band of cruciate crural ligament, central band of plantar fascia

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13
Q

proximal attachment of the lateral band of plantar fascia

A

lateral tubercle of calcaneus tuberosity

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14
Q

distal attachment of the lateral band of plantar fascia

A 
deep fascia (fascia dorsali pedis and central band)
styloid process of 5th met (calcaneometatarsal ligament)
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15
Q

abductor hallucis origin

A

medial tubercle of calcaneal tuberosity, flexor retinaculum, plantar fascia, and intermusuclar septum

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16
Q

abductor hallucis insertion

A

medial tubercle base of proximal phalanx of hallux, medial sesamoid

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17
Q

abductor hallucis nerve and blood

A

medial plantar artery and nerve

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18
Q

flexor digitorum brevis origin

A

medial tubercle of calcaneal tuberosity, plantar aponeurosis, intermusuclar septum

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19
Q

flexor digitorum brevis insertion

A

plantar aspect of the bases of middle phalanges 2-5

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20
Q

blood and nerve to flexor digitorum brevis

A

medial plantar artery and nerve

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21
Q

function of flexor digitorum brevis

A

flex digits 2-5 PIP and MTP)

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22
Q

abductor digiti minimi (quinti) origin

A

medial and lateral tubercles of calcaneal tuberosity, plantar aponeurosis, inter muscular septum

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23
Q

abductor digiti minimi (quinti) insertion

A

lateral base of the proximal phalanx of 5th toe

24
Q

blood and nerve to abductor digiti minimi (quinti)

A

lateral plantar artery and nerve (inferior calcaneal nerve, baxters nerve)

25
Q

function of abductor digiti minimi (quinti)

A

abduct 5th toe, plantar flexes 5th toe

26
Q

origin of the quadratus plantae

A

medial head: medial surface calcaneus

lateral head: triennium plantar and inferior calcareous distal to lateral tubercle.

27
Q

quadratus plantae insertion

A

heads untie to insert onto the FDL tendon

28
Q

blood to quadratus plantae

A

medial and lateral plantar arteries

29
Q

quadratus plantae nerve

A

lateral plantar nerve

30
Q

function of quadratus plantae

A

redirect the pull of the FDL, helps flex phalanges

31
Q

origin of the lumbricals

A

1st lumbrical: medial side of 1st tendon of FDL (tendon going to 2nd digit)2 – 4: adjacent tendons (e.g. 3rd lumbrical: medial side of 3rd, lateral side of 2nd; 2nd lumbrical medial side of 2, lateral side of 1)

32
Q

insertion off lumbricals

A

medial aspect of extensor wing of the extensor expansion at base of proximal phalanx of digits 2-5

33
Q

blood supply of lumbricals

A

respective plantar metatarsal arteries

34
Q

function of lumbricals

A

flex MTP joints, extend PIP and DIP joints

35
Q

origin of the flexor hallucis brevis

A

lateral: plantar surface of cuboid and lateral cuneiform medial: tibialis posterior tendon

36
Q

insertion of the flexor hallucis brevis

A

medial and lateral plantar aspect of the base of proximal phalanx

37
Q

blood to FHB

A

1st plantar metatarsal artery

38
Q

nerve to FHB

A

medial plantar nerve, Proper plantar digital nerve 1 (of hallux)

39
Q

function of FHB

A

flex (plantarflex) hallux MTP joint

40
Q

Flexor digiti minimi brevis origin

A

base of 5th metatarsal, tendon sheath of fibularis longus

41
Q

Flexor digiti minimi brevis insertion

A

plantar/lateral aspect of base of proximal phalanx of 5th toe

42
Q

Flexor digiti minimi brevis blood

A

lateral plantar artery

43
Q

Flexor digiti minimi brevis nerve

A

superficial branch of lateral plantar nerve (proper plantar digital branch)

44
Q

Flexor digiti minimi brevis fxn

A

flex (plantar flex) 5th digit at MTP joint

45
Q

adductor hallucis origin

A

transverse head:fibrous capsule, plantar plates of digits 3-5, deep transverse metatarsal ligament
oblique head: plantar aspect of metatarsal bases 2-4; fibularis longus tendon sheath

46
Q

adductor hallucis insertion

A

lateral sesamoid and lateral aspect of proximal phalanx base of 1st digit

47
Q

adductor hallucis blood

A

plantar metatarsal arteries

48
Q

adductor hallucis nerve

A

deep branch of lateral plantar nerve

49
Q

function of adductor halluis

A

adducts hallux

50
Q

opponens digiti minimi origin

A

base of 5th metatarsal, long plantar ligament, FDMB, tendon sheath of fibularis longus

51
Q

opponens digiti minimi insertion

A

lateral shaft of 5th metatarsal and surrounding fascia

52
Q

opponens digiti minimi fxn

A

Abduction and flexion of 5th toe

53
Q

blood supply to dorsal interossei

A

corresponding dorsal metatarsal artery

54
Q

nerve to dorsal interoessei

A

lateral plantar nerve
-deep branch of lateral plantar nerve innervates 1st – 3rd
• superficial branch of lateral plantar nerve innervates 4th
•1st also receives innervation from deep fibular nerve

55
Q

nerve to plantar interossei

A

lateral plantar nerve
•Superficial branch innervates 3rd plantar interossei
•Deep branch innervates 1st and 2nd plantar interossei

56
Q

blood to plantar interossei

A

plantar metatarsal arteries 2-4

Lower Extremity Anatomy II (12 decks)

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