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OS 203 > Lower Extremity - Origin > Flashcards

Lower Extremity - Origin Flashcards

1
Q

What is the origin of the tensor fasciae latae?

A

Anterior superior iliac spine (ASIS) and anterior portion of the iliac crest

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2
Q

What is the origin of the sartorius?

A

Anterior superior iliac spine (ASIS)

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3
Q

What is the origin of the rectus femoris?

A

Straight head: Anterior inferior iliac spine (AIIS)

Reflected head: Ilium superior to the acetabulum

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4
Q

What is the origin of the vastus lateralis?

A

Greater trochanter of the femur through the lateral lip of the linea aspera

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5
Q

What is the origin of the vastus intermedius?

A

Anterior and lateral aspects of the femoral shaft; lateral intermuscular septum

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6
Q

What is the origin of the vastus medialis?

A

Intertrochanteric line; medial lip of the linea aspera; medial intermuscular septum

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7
Q

What is the origin of the pectineus?

A

Pectin of the pubic bone

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8
Q

What is the origin of the adductor longus?

A

Body of pubic bone beneath pubic tubercle

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9
Q

What is the origin of the adductor brevis?

A

Body and inferior ramus of the pubis

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10
Q

What is the origin of the obturator externus?

A

Margins of the obturator foramen and obturator membrane

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11
Q

What is the origin of the adductor magnus?

A

Inferior ramus of pubis; ramus of the ischium; ischial tuberosity

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12
Q

What is the origin of the gracilis?

A

Body and inferior ramus of the pubis

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13
Q

What is the origin of the gluteus maximus?

A

Posterior gluteal line of ilium; dorsal surfaces of sacrum and coccyx; sacrotuberous ligament

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14
Q

What is the origin of the gluteus medius?

A

Between anterior and posterior gluteal lines

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15
Q

What is the origin of the gluteus minimus?

A

Between anterior and inferior gluteal lines

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16
Q

What is the origin of the piriformis?

A

Anterior surfaces of S2 - S4; sarcotuberous ligament

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17
Q

What is the origin of the superior gemellus?

A

Spine of the ischium

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18
Q

What is the origin of the inferior gemellus?

A

Ischial tuberosity

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19
Q

What is the origin of the obturator internus?

A

Pelvic membrane of obturator membrane; pelvic bones surrounding obturator foramen

20
Q

What is the origin of the quadratus femoris?

A

Lateral border of ischial tuberosity

21
Q

What is the origin of the semitendinosus?

A

Ischial tuberosity

22
Q

What is the origin of the semimembranosus?

A

Ischial tuberosity

23
Q

What is the origin of the biceps femoris (short head)?

A

Linea aspera; lateral supracondylar line of femur

24
Q

What is the origin of the biceps femoris (long head)?

A

Ischial tuberosity

25
Q

What is the origin of the peroneus longus?

A

Head and proximal 2/3 of fibula

26
Q

What is the origin of the peroneus brevis?

A

Distal 2/3 of fibula

27
Q

What is the origin of the tibialis anterior?

A

Lateral condyle of tibia; proximal half of tibia; interosseus membrane

28
Q

What is the origin of the extensor hallucis longus?

A

Middle of anterior surface of fibula; interosseus membrane

29
Q

What is the origin of the extensor digitorum longus?

A

Lateral condyle of tibia; upper anterior surface of fibula; interosseus membrane

30
Q

What is the origin of the gastrocnemius (lateral head)?

A

Lateral condyle of femur

31
Q

What is the origin of the gastrocnemius (medial head)?

A

Medial condyle of femur; popliteal surface above medial condyle

32
Q

What is the origin of the soleus?

A

Posterior head of fibula; proximal third of posterior fibula; soleal line; medial border of tibia

33
Q

What is the origin of the plantaris?

A

Lateral supracondylar line of femur; oblique popliteal ligament

34
Q

What is the origin of the popliteus?

A

Lateral surface of lateral condyle of femur; capsule of knee joint

35
Q

What is the origin of the flexor hallucis longus?

A

Inferior 2/3 of posterior surface of fibula; inferior surface of interosseus membrane

36
Q

What is the origin of the flexor digitorum longus?

A

Middle portion of posterior surface of fibula; fascia covering tibialis posterior

37
Q

What is the origin of the tibialis posterior?

A

Posterior surfaces of interosseus membrane, tibia and fibula

38
Q

What is the origin of the abductor hallucis?

A

Medial process of calcaneal tuberosity; plantar aponeurosis; flexor retinaculum

39
Q

What is the origin of the flexor digitorum brevis?

A

Medial tubercle of calcaneal tuberosity; plantar aponeurosis; intermuscular septa

40
Q

What is the origin of the abductor digiti minimi?

A

Medial and lateral tubercles of calcaneal tuberosity; plantar aponeurosis; flexor retinaculum

41
Q

What is the origin of the flexor hallucis brevis?

A

Lateral cuneiform and cuboid

42
Q

What is the origin of the quadratus plantae?

A

Medial and lateral surfaces of calcaneus

43
Q

What is the origin of the flexor digiti minimi brevis?

A

Base of 5th metatarsal bone; plantar ligament

44
Q

What is the origin of the lumbrical muscles?

A

Tendons of flexor digitorum longus

45
Q

What is the origin of the adductor hallucis?

A

Oblique head: Bases of 2nd - 4th metatarsal bones; long plantar ligament

Transverse head; Plantar metatarsophalangeal ligaments of 3rd - 5th toes

46
Q

What is the origin of the dorsal interossei?

A

Sides of metatarsal bones

47
Q

What is the origin of the plantar interossei?

A

Medial sides of 3rd to 5th metatarsal bones

OS 203 (8 decks)

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