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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
Gluteus Maximus - Innervation
Inferior Gluteal Nerve
26
Gluteus Maximus - Origin
- Coccyx - Edge of sacrum - Posterior iliac crest - Sacrotuberous and sacroiliac ligaments
27
Gluteus Maximus - Insertion
Upper fibres: iliotibial tract Lower fibres: gluteal tuberosity
28
Gluteus Maximus - Actions
All fibres: - EXTEND the coxal joint - LATERALLY ROTATE the coxal joint - ABDUCT the coxal joint Lower fibres: - ADDUCT the coxal joint
29
Gluteus Medius - Innervation
Superior Gluteal Nerve
30
Gluteus Medius - Origin
- Gluteal surface of ilium - Between posterior and anterior gluteal lines - just below the iliac crest
31
Gluteus Medius - Insertion
Lateral aspect of the greater trochanter
32
Gluteus Medius - Actions
All: - ABDUCT the coxal joint Anterior fibres: - FLEX & MEDIALLY ROTATE the coxal joint Posterior fibres: - EXTEND & LATERALLY ROTATE the coxal joint
33
Adductor Longus - Innervation
Obturator Nerve
34
Adductor Longus - Origin
Pubic tubercle
35
Adductor Longus - Insertion
Pectineal line & medial lip of linea aspera
36
Adductor Longus - Actions
- ADDUCT the coxal joint - MEDIALLY ROTATE the coxal joint - Assist to FLEX the coxal joint
37
Erector Spinae Group - Innervation
Spinal Nerve
38
Erector Spinae Group - Origin
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
Erector Spinae Group - Insertion
- Various attachments at the posterior ribs - Spinous and transverse processes of thoracic & cervical vertebrae - Mastoid process of the temporal bone
40
Erector Spinae Group - Includes…
Spinalis, Longissimus, Iliocostalis
41
Erector Spinae Group - Actions
Unilaterally: LATERALLY FLEX the vertebral column to the same side Bilaterally: EXTEND vertebral column
42
Vastus Lateralis - Origin
Lateral lip of linea aspera, gluteal tuberosity, and greater trochanter
43
Vastus medialis - origin
Medial lip of linea aspera
44
Vastus intermedius - origin
Anterior and lateral shaft of femur

ACMT (20 decks)

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