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Anatomy Lab > Unit 3 - Muscles > Flashcards

Unit 3 - Muscles Flashcards

1
Q

Psoas major

A

Origin: vertebral bodies of T12 - L5
Insertion: Lesser trochanter of femur
Function: flexes hip
Innervation: femoral nerve

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2
Q

Illiacus

A

Origin: iliac fossa of pelvis
Insertion: lesser trochanter of femur
Function: flexes hip
Innervation: femoral nerve

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3
Q

Sartorius

A

Origin: anterior superior iliac spine
Insertion: medial side of proximal tibia
Function: flexes hip
Innervation: femoral nerve

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4
Q

Rectus femoris

A

Origin: anterior inferior iliac spine
Insertion: tibial tuberosity
Function: flexes hip
Innervation: femoral nerve

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5
Q

Vastus lateralis

A

Origin: greater trochanter and linea aspera of femur
Insertion: tibial tuberosity
Function: extends knee
Innervation: femoral nerve

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6
Q

Vastus medialis

A

Origin: medial shaft of femur; linea aspera
Insertion: tibial tuberosity
Function: extends knee
Innervation: femoral nerve

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7
Q

Vastus intermedius

A

Origin: anterior shaft of femur
Insertion: tibial tuberosity
Function: extends knee
Innervation: femoral nerve

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8
Q

Gracilis

A

Origin: body of pubis
Insertion: medial side of proximal tibia
Function: adducts hip
Innervation: obturator nerve

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9
Q

Obturator externus

A

Origin: lateral margin of obturator foramen
Insertion: trochanteric fossa of femur
Function: laterally rotates hip
Innervation: obturator nerve

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10
Q

Pectineus

A

Origin: superior pubic ramus
Insertion: linea aspera of femur
Function: adducts hip
Innervation: femoral nerve

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11
Q

Adductor longus

A

Origin: inferior ramus of pubis
Insertion: linea aspera of femur
Function: adducts hip
Innervation: obturator nerve

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12
Q

Adductor brevis

A

Origin: inferior ramus of pubis
Insertion: linea aspera of femur
Function: adducts hip
Innervation: obturator nerve

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13
Q

Adductor magnus

A

Origin: (adductor component): ischiopubic ramus; (hamstring component): ischial tuberosity
Insertion: (adductor): linea aspera, medial supracondylar ridge of femur; (hamstring): adductor tubercle of femur
Function: adducts hip
Innervation: tibial nerve

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14
Q

Gluteus maximus

A

Origin: sacrum
Insertion: gluteal tuberosity of femur
Function: extend and externally rotate hip
Innervation: inferior gluteal nerve

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15
Q

Gluteus medius

A

Origin: between anterior and posterior gluteal lines of ilium
Insertion: greater trochanter of femur
Function: abduct and internally rotate the hip
Innervation: superior gluteal nerve

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16
Q

Gluteus minimus

A

Origin: between inferior and anterior gluteal lines of ilium
Insertion: greater trochanter of femur
Function: abduct and internally rotate hip
Innervation: superior gluteal nerve

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17
Q

Tensor fasciae latae

A

Origin: iliac crest and anterior superior iliac spine
Insertion: iliotibial tract to lateral side of proximal tibia
Function: abducts hip
Innervation: superior gluteal nerve

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18
Q

Piriformis

A

Origin: Sacrum
Insertion: greater trochanter of femur
Function: abducts hip
Innervation: nerve to the lateral rotator group muscles

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19
Q

Obturator internus

A

Origin: medial margin of obturator foramen
Insertion: medial surface of greater trochanter
Function: laterally rotates hip
Innervation: nerve to the lateral rotator group muscles

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20
Q

Gemellus superior

A

Origin: ischial spine
Insertion: medial surface of greater trochanter
Function: laterally rotates hip
Innervation: nerve to the lateral rotator group muscles

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21
Q

Gemellus inferior

A

Origin: ischial tuberosity
Insertion: medial surface of greater trochater
Function: laterally rotates hip
Innervation: nerve to the lateral rotator group muscles

22
Q

Quadratus femoris

A

Origin: ischial tuberosity
Insertion: intertrochanteric crest of femur
Function: laterally rotates hip
Innervation: nerve to the lateral rotator group muscles

23
Q

Semitendinosus

A

Origin: ischial tuberosity
Insertion: medial surface and condyle of proximal tibia
Function: extends hip
Innervation: tibial nerve

24
Q

Semimembranosus

A

Origin: ischial tuberosity
Insertion: medial surface of proximal tibia
Function: extends hip
Innervation: tibial nerve

25
Q

Biceps femoris long head

A

Origin: ischial tuberosity
Insertion: common insertion on head of fibula; lateral condyle of tibia
Function: extends hip
Innervation: tibial nerve

26
Q

Biceps femoris short head

A

Origin: linea aspera of femur
Insertion: common insertion on head of fibula; lateral condyle of tibia
Function: extends hip
Innervation: common fibular nerve

27
Q

Lateral gastrocnemius

A

Origin: lateral condyle of femur
Insertion: calcaneal tuberosity, via calcaneal tendon
Function: flexes knee; plantarflexes ankle
Innervation: tibial nerve

28
Q

Medial gastrocnemius

A

Origin: medial condyle of femur
Insertion: calcaneal tuberosity, via calcaneal tendon
Function: flexes knee; plantarflexes ankle
Innervation: tibial nerve

29
Q

Plantaris

A

Origin: lateral supracondylar line of femur
Insertion: calcaneal tuberosity, via calcaneal tendon
Function: flexes knee; plantarflexes ankle
Innervation: tibial nerve

30
Q

Soleus

A

Origin: proximal fibula; soleal line; inferior tibia
Insertion: calcaneal tuberosity, via calcaneal tendon
Function: plantarflexes ankle
Innervation: tibial nerve

31
Q

Popliteus

A

Origin: lateral condyle of femur
Insertion: soleal line and superior surface of tibia
Function: flexes knee
Innervation: tibial nerve

32
Q

Tibialis posterior

A

Origin: interosseous membrane
Insertion: navicular; cuneiforms; cuboid; metatarsals;
Function: plantarflexes ankle
Innervation: tibial nerve

33
Q

Flexor digitorum longus

A

Origin: posterior and medial shaft of tibia
Insertion: distal phalanges of digits II - V (2 - 5)
Function: plantarflexes ankle
Innervation: tibial nerve

34
Q

Flexor hallucis longus

A

Origin: posterior shaft of fibula
Insertion: distal phalanx of digit 1
Function: plantarflexes at ankle
Innervation: tibial nerve

35
Q

Tibialis anterior

A

Origin: lateral condyle and proximal shaft of tibia
Insertion: base of first metatarsal
Function: dorsiflexes ankle
Innervation: deep fibular nerve

36
Q

Extensor digitorum longus

A

Origin: interosseous membrane
Insertion: distal phalanges of digits II - V (2-5)
Function: dorsiflexes ankle
Innervation: deep fibular nerve

37
Q

Extensor hallucis longus

A

Origin: interosseous membrane
Insertion: distal phalanx of digit 1
Function: dorsiflexes ankle
Innervation: deep fibular nerve

38
Q

Fibularis tertius

A

Origin: interosseous membrane
Insertion: base of fifth metatarsal
Function: dorsiflexes ankle
Innervation: deep fibular nerve

39
Q

Fibularis longus

A

Origin: head and proximal shaft of fibula
Insertion: base of first metatarsal
Function: plalntarflexes ankle
Innervation: superficial fibular nerve

40
Q

Fibularis brevis

A

Origin: shaft of fibula
Insertion: tuberosity of fifth metatarsal
Function: plantarflexes ankle
Innervation: superficial fibular nerve

41
Q

Extensor digitorum brevis

A

Origin: calcaneus
Insertion: proximal phalanges of digits II - V (2-5)
Function: extends digits II - V (2-5)
Innervation: deep fibular nerve

42
Q

Extensor hallucis brevis

A

Origin: calcaneus
Insertion: proximal phalanx of hallux
Function: extends hallux
Innervation: deep fibular nerve

43
Q

Flexor digitorum brevis

A

Origin: calcaneal tuberosity (inferior surface)
Insertion: middle phalanges of digits II - IV (2-4)
Function: flexes digits II - IV (2-4)
Innervation: medial plantar nerve

44
Q

Abductor hallucis

A

Origin: calcaneal tuberosity
Insertion: base of proximal phalanx of hallux
Function: abducts, flexes hallux
Innervation: medial plantar nerve

45
Q

Flexor hallucis brevis

A

Origin: plantar surfaces of distal tarsal bones
Insertion: base of proximal phalanx of hallux
Function: flexes hallux
Innervation: medial plantar nerve

46
Q

Quadratus plantae

A

Origin: medial and lateral sides of calcaneus
Insertion: tendons of flexor digitorum longus
Function: flexes digits II - V (2-5)
Innervation: medial plantar nerve

47
Q

Plantar and dorsal interossei

A

Origin: n/a
Insertion: n/a
Function: abduct toes
Innervation: medial plantar nerve (?)

48
Q

Flexor digiti minimi brevis

A

Origin: base of fifth metatarsal
Insertion: proximal phalanx of digit VV
Function: flexes digit VV
Innervation: lateral plantar nerve

49
Q

Abductor digiti minimi

A

Origin: calcaneus
Insertion: proximal phalanx of digit V
Function: abducts and flexes digit V
Innervation: lateral plantar nerve

50
Q

Lumbricals

A

Origin: tendons of flexor digitorum longus
Insertion: tendons of extensor digitorm longus
Function: flex and extend toes
Innervation: medial plantar nerve

Anatomy Lab (5 decks)

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