Module 2 Muscles Flashcards

1
Q

Semimembranosus - Origin

A

Ischial tuberosity

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2
Q

Semimembranosus - Insertion

A

Posterior aspect of the medial condyle of the tibia

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3
Q

Semimembranosus - Innervation

A

Sciatic Nerve (tibial branch)

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4
Q

Semimembranosus - Actions

A
  • Flex the tibiofemoral joint
  • Medially rotate the flexed tibiofemoral joint
  • Extend the coxal joint
  • Assist to medially rotate the coxal joint
  • Bilaterally: tilt the pelvis posteriorly
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5
Q

Semitendinosus - Origin

A

Ischial tuberosity

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6
Q

Semitendinosus - Insertion

A

Proximal, medial shaft of the tibia at the pes anserinus tendon

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7
Q

Semitendinosus - Actions

A
  • Flex the tibiofemoral joint
  • Medially rotate the flexed tibiofemoral joint
  • Extend the coxal joint
  • Assist to medially rotate the coxal joint
  • Bilaterally: tilt the pelvis posteriorly
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8
Q

Semitendinosus - Innervation

A

Sciatic nerve ( tibial branch )

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9
Q

Rectus Femoris - Origin

A

Anterior inferior iliac spine (AIIS)

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10
Q

Rectus Femoris - Insertion

A

Tibial tuberosity via the patella and patellar ligament

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11
Q

Rectus Femoris - Actions

A
  • Extends the tibiofemoral joint
  • Flexes the coxal joint
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12
Q

Rectus Femoris - Innervation

A

Femoral nerve

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13
Q

Biceps Femoris - Innervation

A

Sciatic nerve
- Long head (tibial branch)
- Short head (fibular branch)

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14
Q

Biceps Femoris - Origin

A

Long head: Ischial tuberosity
Short head: lateral lip of the linea aspera

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15
Q

Biceps Femoris - Insertion

A

Head of the fibula

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16
Q

Biceps Femoris - Actions

A
  • Flex the tibiofemoral joint
  • Laterally rotate the flexed tibiofemoral joint

Long Head: Extend the coxal joint and assist to laterally rotate the coxal joint

Bilaterally: tilt the pelvis posteriorly

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17
Q

Vastus Group - Actions

A

Extend the tibiofemoral joint

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18
Q

Vastus Group - Insertion

A

Tibial tuberosity via the patella and the patellar ligament

19
Q

Vastus Group - Innervation

A

Femoral nerve

20
Q

Vastus Group (3) - Origin

A

Vastus Medialis: medial lip of the linea aspera

Vastus Lateralis: lateral lip of the linea aspera, Gluteal tuberosity, and greater trochanter

Vastus Intermedius: Anterior and lateral shaft of femur

21
Q

Tensor Fascia Latae (TFL) - Innervation

A

Superior Gluteal Nerve

22
Q

Tensor Fascia Latae (TFL) - Origin

A

Iliac crest posterior to the ASIS (anterior superior iliac spine)

23
Q

Tensor Fascia Latae (TFL) - Insertion

A

Iliotibial tract

24
Q

Tensor Fascia Latae (TFL) - Actions

A
  • Flex the coxal joint
  • Medially rotate the coxal joint
  • Abduct the coxal joint
25
Q

Gluteus Maximus - Innervation

A

Inferior Gluteal Nerve

26
Q

Gluteus Maximus - Origin

A
  • Coccyx
  • Edge of sacrum
  • Posterior iliac crest
  • Sacrotuberous and sacroiliac ligaments
27
Q

Gluteus Maximus - Insertion

A

Upper fibres: iliotibial tract

Lower fibres: gluteal tuberosity

28
Q

Gluteus Maximus - Actions

A

All fibres:
- EXTEND the coxal joint
- LATERALLY ROTATE the coxal joint
- ABDUCT the coxal joint

Lower fibres:
- ADDUCT the coxal joint

29
Q

Gluteus Medius - Innervation

A

Superior Gluteal Nerve

30
Q

Gluteus Medius - Origin

A
  • Gluteal surface of ilium
  • Between posterior and anterior gluteal lines
  • just below the iliac crest
31
Q

Gluteus Medius - Insertion

A

Lateral aspect of the greater trochanter

32
Q

Gluteus Medius - Actions

A

All:
- ABDUCT the coxal joint

Anterior fibres:
- FLEX & MEDIALLY ROTATE the coxal joint

Posterior fibres:
- EXTEND & LATERALLY ROTATE the coxal joint

33
Q

Adductor Longus - Innervation

A

Obturator Nerve

34
Q

Adductor Longus - Origin

A

Pubic tubercle

35
Q

Adductor Longus - Insertion

A

Pectineal line & medial lip of linea aspera

36
Q

Adductor Longus - Actions

A
  • ADDUCT the coxal joint
  • MEDIALLY ROTATE the coxal joint
  • Assist to FLEX the coxal joint
37
Q

Erector Spinae Group - Innervation

A

Spinal Nerve

38
Q

Erector Spinae Group - Origin

A

Common tendon (thoracolumbar fascia) that attaches to the posterior surface of the sacrum, iliac crest, spinous processes of lumbar, and last two thoracic vertebrae

39
Q

Erector Spinae Group - Insertion

A
  • Various attachments at the posterior ribs
  • Spinous and transverse processes of thoracic & cervical vertebrae
  • Mastoid process of the temporal bone
40
Q

Erector Spinae Group - Includes…

A

Spinalis, Longissimus, Iliocostalis

41
Q

Erector Spinae Group - Actions

A

Unilaterally:
LATERALLY FLEX the vertebral column to the same side

Bilaterally:
EXTEND vertebral column

42
Q

Vastus Lateralis - Origin

A

Lateral lip of linea aspera, gluteal tuberosity, and greater trochanter

43
Q

Vastus medialis - origin

A

Medial lip of linea aspera

44
Q

Vastus intermedius - origin

A

Anterior and lateral shaft of femur