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MSK Exam #2 > Muscle, Innervation, Origin and Insertion of Thigh > Flashcards

Muscle, Innervation, Origin and Insertion of Thigh Flashcards

1
Q

Muscles of Anterior Thigh (8)

A 
Iliacus m.
Psoas major m.
Vastus lateralis m.
Vastus intermedius m
Vastus medialis m.
Rectus femoris m.
Sartorius m.
Articularis genu m.
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2
Q

Muscles of Medial Thigh (5)

A 
Adductor magnus m. (both parts)
Adductor longus m.
Adductor brevis m.
Pectineus m.
Gracilis m.
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3
Q

Muscle of the Posterior Thigh (3)

A

Biceps femoris m.
Semitendinosus m.
Semimembranosus m.

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4
Q

Muscles of the Gluteal Region (10)

A 
Gluteus maximus m.
Gluteus medius m.
Gluteus minimus m.
Tensor fascia latae m.
Piriformis m.
Superior gemellus m.
Inferior gemellus m.
Quadratus femoris m.
Obturator externus m.
Obturator internus m.
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5
Q

Gluteus maximus m.

A

A: Extend thigh and assist in lateral rotation.
O: Posterior ilium
I: Gluteal tuberosity and IT band.
N: Inferior gluteal n.

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6
Q

Gluteus medius m.

A

A: Abduct and medially rotate thigh.
O: Ilium
I: Greater trochanter
N: Superior gluteal n.

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7
Q

Gluteus minimus m.

A

A: Abduct and medially rotate thigh.
O: Ilium
I: Greater trochanter
N: Superior gluteal n.

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8
Q

Tensor fascia latae m.

A

A: Tense the IT band.
O: Iliac spine and iliac crest
I: IT band to lateral tibial condyle
N: Superior gluteal n.

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9
Q

Piriformis m.

A

A: Laterally rotate extended thigh, abduct flexed thigh, stabilize femoral head.
O: Anterior surface of sacrum.
I: Greater trochanter
N: N. to piriformis m.

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10
Q

Superior gemellus m.

A

A: Laterally rotate extended thigh, abduct flexed thigh, stabilize femoral head.
N: N. to obturator internus m.

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11
Q

Inferior gemellus m.

A

A: Laterally rotate extended thigh, abduct flexed thigh, stabilize femoral head.
N: N. to quadratus femoris m.

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12
Q

Quadratus femoris m.

A

A: Laterally rotate thigh and stabilize femoral head.
N: N. to quadratus femoris m.

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13
Q

Obturator externus m.

A

A: Laterally rotate thigh and stabilize femoral head.
N: Obturator n.

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14
Q

Obturator internus m.

A

A: Laterally rotate extended thigh, abduct flexed thigh, stabilize femoral head.
N: N. to obturator internus m.

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15
Q

Psoas major m.

A

A: Sidebend vertebral column. Flex trunk.
O: T12-L5
I: Lesser trochanter
N: Lumbar plexus L1-3

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16
Q

Iliacus m.

A

A: Flex thigh and stabilize hip joint.
O: Superior iliac fossa, ala of sacrum.
I: Lesser trochanter of femur. Psoas major m..
N: Femoral n.

17
Q

Sartorius m.

A

A: Flex, abduct, laterally rotate thigh. Flex leg at knee.
O: ASIS
I: Pes anserinus
N: Femoral n.

18
Q

Rectus femoris m.

A

A: Extend leg at knee. Assist in thigh flexion.
O: Ilium
I: Tibial tuberosity
N: Femoral n.

19
Q

Vastus lateralis m.

A

A: Extebd leg at the knee.
O: Greater trochanter
I: Tibial tuberosity
N: Femoral n.

20
Q

Vastus intermedius m.

A

A: Extend leg at knee.
O:Anterior and lateral part of femoral body.
I: Tibial tuberosity
N: Femoral n.

21
Q

Vastus medialis m.

A

A: Extend leg at knee.
O: Intertrochanteric line, linea aspera.
I: Tibial tuberosity
N: Femoral n.

22
Q

Articularis genu m.

A

A: Tightens capsule during knee extension.
N: Femoral n.

23
Q

Pectineus m.

A

A: Adduct and flex thigh.
O: Superior pubic ramus
I: Pectineal line of femur
N: Femoral n.

24
Q

Adductor longus m.

A

A: Adduct thigh
O: Body of pubis
I: Linea aspera
N: Anterior division of obturator n.

25
Q

Adductor brevis m.

A

A: Adduct thigh
O: Body of pubis
I: Pectineal line and proximal linea aspera
N: Anterior division of obturator n.

26
Q

Adductor magnus m.

A

A: Adduct, flex (upper) and extend (lower) thigh.
O: Isciopubic ramus and ischial tuberosity
I: Gluteal tuberosity, linea aspera, muedial supracondylar line, adductor tubercle.
N: Posterior division of obturator n. and Tibial division of sciatic n.

27
Q

Gracilis m.

A

A: Adduct thigh and assist in medial rotation. Flex leg.
O: Body of pubis
I: Pes anserinus
N: Anterior division of obturator n.

28
Q

Biceps femoris m.

A

A: Flex leg and laterally rotate leg when flexed. Long head extends thigh.
O: Ischial tuberosty and linea aspera.
I: Lateral aspect of fibular head.
N: Tibial division of sciatic n. (LH) and common fibular division of sciatic n. (SH)

29
Q

Semitendinosus m.

A

A: Extend thigh.
O: Ischial tuberosity.
I: Pes anserinus.
N: Tibial division of sciatic n.

30
Q

Semimembranosus m.

A

A: Extend thigh
O: Ischial tuberosty
I: Medial tibial condyle
N: Tibial division of sciatic n.

MSK Exam #2 (15 decks)

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