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Anatomy > Lab 5: Origins, Insertions, Actions > Flashcards

Lab 5: Origins, Insertions, Actions Flashcards

1
Q

what is the origin of the adductor longus?

A

-pubis
-crest + symphysis

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2
Q

what is the insertion of the adductor longus?

A

-femur

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3
Q

what is the action of the adductor longus?

A

-adducts + flexes thigh @ hip joint
-rotates thigh

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4
Q

what is the origin of the adductor magnus?

A

-pubis
-ischium
-ischial tuberosity

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5
Q

what is the insertion of the adductor magnus?

A

-femur

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6
Q

what is the action of the adductor magnus?

A

-adducts thigh @ hip joint
-rotates thigh
-anterior: flexes thigh @ hip joint
-posterior: extends thigh @ hip joint

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7
Q

what is the origin of the gracillis?

A

-pubis

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8
Q

what is the insertion of the gracillis?

A

-tibia

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9
Q

what is the action of the gracillis?

A

-adducts thigh @ hip joint
-medially rotates thigh
-flexes leg @ knee joint

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10
Q

what is the origin of the iliacus?

A

-sacrum
-ilium

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11
Q

what is the insertion of the iliacus?

A

-femur

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12
Q

what is the action of the ilacus and psoas major?

A

-flexes thigh @ hip joint
-rotates thigh laterally
-flexes trunk on the hip (sitting up from lying down)

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13
Q

what is the origin of the psoas major?

A

-lumbar vertebrae

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14
Q

what is the insertion of the psoas major?

A

-femur

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15
Q

what do the iliacus and the psoas major form?

A

iliopsoas

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16
Q

what is the origin of the pectineus?

A

-pubis

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17
Q

what is the insertion of the pectineus?

A

-femur

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18
Q

what is the action of the pectineus?

A

-flexes + adducts thigh @ hip joint

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19
Q

what is the origin of the rectus femoris?

A

-ilium
-iliac spine

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20
Q

what is the insertion of the rectus femoris, vastus lateralis, and vastus medialis?

A

-patella
-tibia
-tibial tuberosity

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21
Q

what is the origin of the vastus lateralis?

A

-femur

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22
Q

what is the origin of the vastus medialis?

A

-femur

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23
Q

what is the action of the rectus femoris?

A

-extends the leg @ knee joint
-flexes thigh @ hip joint

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24
Q

what is the action of the vastus medialis and vastus lateralis?

A

-extends the leg @ knee joint

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25
Q

what do the rectus femoris, vastus medialis, and vastus lateralis create?

A

-quadriceps femoris

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26
Q

what is the origin of the sartorius?

A

-ilium
-iliac spine

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27
Q

what is the insertion of the sartorius?

A

-tibia

28
Q

what is the action of the sartorius?

A

-weakly flexes leg @ knee joint
-weakly flexes, abducts, and laterally rotates thigh @ hip joint

29
Q

what is the origin of the tensor fasciae latae?

A

-ilium
-iliac crest
-iliac spine

30
Q

what is the insertion of the tensor fasciae latae?

A

-tibia

31
Q

what is the action of the tensor fasciae latae?

A

-flexes + abducts the hip

32
Q

what is the origin of the gluteus maximus?

A

-ilium
-iliac crest
-sacrum + coccyx

33
Q

what is the insertion of the gluteus maximus?

A

-femur

34
Q

what is the action of the gluteus maximus?

A

-extends and laterally rotates thigh @ hip

35
Q

what is the origin of the gluteus medius?

A

-ilium

36
Q

what is the insertion of the gluteus medius?

A

-femur

37
Q

what is the action of the gluteus medius?

A

-abducts and medially rotates thigh @ hip

38
Q

what is the origin of the biceps femoris?

A

-long head: ischium (ischial tuberosity)
-short head: femur

39
Q

what is the insertion of the biceps femoris?

A

-fibula
-tibia

40
Q

what is the action of the biceps femoris and the semimembranosus?

A

-extends thigh @ hip joint

41
Q

what is the origin of the semimembranosus?

A

-ischium
-ischial tuberosity

42
Q

what is the insertion of the semimembranosus?

A

-tibia (tibia medial > tibial tuberosity)

43
Q

what is the origin of the semitendinosus?

A

-ischium
-ischial tuberosity

44
Q

what is the insertion of the semitendinosus?

A

-tibia

45
Q

what is the action of the semitendinosus?

A

-extends thigh @ hip joint
-flexes leg @ knee joint

46
Q

what do the biceps femoris, semimembranosus, and semitendinosus form?

A

-hamstrings

47
Q

what is the origin of the extensor digitorum longus?

A

-tibia
-fibula

48
Q

what is the insertion of the extensor digitorum longus?

A

-phalanges of toes 2-5

49
Q

what is the action of the extensor digitorum longus?

A

-dorsiflexes foot
-extends phalanges

50
Q

what is the origin of the fibularis (peroneus) longus?

A

-fibula

51
Q

what is the insertion of the fibularis (peroneus) longus?

A

-metatarsal 1
-1st cuneiform

52
Q

what is the action of the fibularis (peroneus) longus?

A

-plantarflexes foot
-everts foot

53
Q

what is the origin of the gastrocnemius?

A

-femur
-knee (capsule)

54
Q

what is the insertion of the gastrocnemius?

A

-calcaneus

55
Q

what is the action of the gastrocnemius?

A

-plantarflexes foot
-flexes leg @ knee joint

56
Q

what is the origin of the soleus?

A

-fibula
-tibia

57
Q

what is the insertion of the soleus?

A

-calcaneus

58
Q

what is the action of the soleus?

A

-plantarflexes foot

59
Q

what is the origin of the tibialis anterior?

A

-tibia

60
Q

what is the insertion of the tibialis anterior?

A

-metatarsal 1
-1st cuneiform

61
Q

what is the action of the tibialis anterior

A

-dorsiflexes foot
-inverts foot

62
Q

what is the origin of the rectus abdominis?

A

-pubis
-crest + symphysis

63
Q

what is the insertion of the rectus abdominis?

A

-ribs 5-7
-xiphoid process of sternum

64
Q

what is the action of the rectus abdominis?

A

-urination, defecation, childbirth, forced exhalation
-flexes vertebrae column

65
Q

what is the origin of the external abdominal oblique?

A

-ribs 5-12

66
Q

what is the insertion of the external abdominal oblique?

A

-ilium
-iliac crest

67
Q

what is the action of the external abdominal oblique?

A

-compresses abdomen
-flexes + rotates vertebral column

Anatomy (29 decks)

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