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Anatomy > Muscles Of The Thigh > Flashcards

Muscles Of The Thigh Flashcards

1
Q

The three compartments of the thigh are ___, ___, ___, which are separated by _____

A

Anterior
Posterior
Medial
Intermuscular septae

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2
Q

Deep fascia of the thigh origins (6)

A 
Body of pubis
Inguinal ligament 
Iliac crest
Sacrum 
Coccyx 
Sacrotuberous ligament
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3
Q

Attachments of the iliotibial band (ITB) (2)

A 
Tubercle of ilium
Gerdys tubercle (lateral of tibia)
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4
Q

Psoas Major attachments (3)

A

Transverse processes of T12-L5
Associated Intervertebral discs
Lesser trochanter of femur

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5
Q

Actions of psoas major (5)

A 
Prime flexor of hip
Trunk flexion
Lateral trunk flexion
Stabilization of Lumbar vertebrae 
Assists external rotation of hip
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6
Q

Innervation of psoas major

A

Anterior ramii of lumbar nerves L1-L4

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7
Q

Shape and fibre direction of iliacus

A

Flat triangular

Fibres are oblique medial, then lateral after curves around iliopubic ramus)

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8
Q

Attachments of iliacus (6)

A 
Sup 2/3 of iliac fossa
Inner lip of iliac crest
Iliolumbar ligament 
Anterior sacroiliac ligament
Ala of sacrum

Lesser trochanter of femur (lateral to psoas major)

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9
Q

Actions of iliacus (2)

A

Flexion of hip

Lateral rotation of hip

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10
Q

Innervation of iliacus

A

Femoral nerve L2-4

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11
Q

Attachments of sartorius (3)

A

ASIS
Superior half of inferior iliac notch
Superior medial surface of tibial tuberosity (part of pes an serine group)

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12
Q

Actions of sartorius (5)

A 
Flexion of hip
Abduction of hip
External rotation of hip
Medial rotation of knee
Flexion of knee
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13
Q

Tensor fascia lata attachments (5)

A

Anterior aspect of lip of iliac crest
Lateral aspect ASIS

ITB at 1/3-2/3 junction
Lateral condyle of fibula
Lateral condyle of femur

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14
Q

Actions of tensor fascia lata (2)

A

Flexion of hip

Abduction of hip

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15
Q

Innervation of tensor fascia lata

A

Superior gluteal nerve L4-S1

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16
Q

Attachments of rectus femoris (3)

A

AIIS (straight head)
Groove superior to acetabulum (reflected head)
Quadriceps tendon (superior border of patella)

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17
Q

Actions of rectus femoris (2)

A 
Knee extension
Hip flexion (weak)
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18
Q

Innervation of rectus femoris

A

Femoral nerve L2-L4

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19
Q

Attachments of vastus lateralis (6)

A

Anterior inferior border of greater trochanter
Proximal portion of intertrochanteric line
Lateral lip gluteal tuberosity
Lateral lip linea aspera
Lateral intermuscular septum

Proximal border of patella via patellar tendon

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20
Q

Action of vastus lateralis

A

Extension of knee

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21
Q

Innervation of vastus lateralis

A

Femoral nerve L2-L4

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22
Q

Attachments of vastus medialis (7)

A 
Distal half inter trochanteric line
Medial lip linea aspera 
Proximal part medial supracondylar ridge
Tendon adductor longus
Tendon adductor Magnus
Medial intermuscular septum

Superior border of patella via quadriceps tendon

23
Q

Actions of vastus medialis

A

Extension knee

24
Q

Innervation of vastus medialis

A

Femoral nerve L2-L4

25
Q

Attachments of vastus intermedius (3)

A

Anterior and lateral surface of proximal 2/3 of femur
Lateral intermuscular septum
Superior border of patella via quadriceps tendon

26
Q

Action of vastus intermedius

A

Extension of knee

27
Q

Innervation of vastus intermedius

A

Femoral nerve L2-L4

28
Q

Layers of adductors
Superficial (3)
Middle (1)
Deep (1)

A

Superficial: pectineus, adductor longus, gracilis
Middle: adductor brevis
Deep: adductor magnus

29
Q

Attachments of gracilis (3)

A

Inferior half of symphysis pubis
Medial margin of inferior ramus of pubic bone

Superior medial portion of tibial tuberosity at pes an serine insertion

30
Q

Actions of gracilis (3)

A

Knee flexion
Medial rotation of knee
Adduction of hip

31
Q

Innervation of gracilis

A

Obturator nerve L2-L4

32
Q

Attachments of pectineus (3)

A

Superior pubic ramus
Iliopubic eminence

Pectineal line of femur

33
Q

Actions of pectineus (3)

A

Adduction
Flexion of hip
Assists medial rotation of hip

34
Q

Innervation of pectineus

A

Femoral nerve L2-L4

35
Q

Fibre direction of pectineus

A

Quadrangular muscle

Oblique inferior lateral fibres

36
Q

Attachments of adductor longus (2)

A

Body of pubis inferior to tubercle

Mid third of medial lip of linea aspera

37
Q

Actions of adductor longus (2)

A

Adduction at hip

Assists flexion of hip

38
Q

Innervation of adductor longus

A

Obturator nerve L2-L4

39
Q

Attachments of adductor brevis (4)

A

Body of pubis
Inferior ramus of pubis

Distal 2/3 of pectineal line
Proximal lip of medial half of linea aspera

40
Q

Actions of adductor brevis (2)

A

Adduction at hip

Assists flexion of hip

41
Q

Innervation of adductor brevis

A

Obturator nerve L2-L4

42
Q

Attachments of adductor Magnus (5)

A

Hamstring portion-
Ischial tuberosity
Adductor tubercle

Adductor portion-
Inferior ramus of pubis
Middle linea aspera
Medial supracondylar ridge

43
Q

Actions of adductor Magnus (5)

A

Adduction of hip
Hamstring-
Hip extension
Hip medial rotation

Adductor portion-
Flexion of hip
Lateral rotation of hip

44
Q

Innervation of adductor Magnus

A

Adductor part femoral nerve L2-L4

Hamstring part sciatic nerve L4-S3

45
Q

Attachments of biceps femoris (8)

A

Long head-
Post ischial tuberosity
Sacrotuberous ligament

Short head-
Lateral lip linea aspera
Proximal 2/3 lateral supracondylar ridge
Lateral intermuscular septum

Lateral aspect of head of fibula
Lateral condyle of tibia
LCL

46
Q

Actions of biceps femoris (3)

A

Flexion of knee
Extension of hip
Lateral rotation of knee

47
Q

Innervation of biceps femoris

A

Long head- tibial branch sciatic nerve L4-S3

Short head- peroneal branch of sciatic nerve L5-S3

48
Q

Attachments of semitendinosus (3)

A

Posterior ischial tuberosity
Proximal medial surface of tibial tuberosity (pes an serine)
Fascia of the leg

49
Q

Actions of semitendinosus (5)

A 
Flexion of knee
Medial rotation of knee
Extension of hip
Medial rotation of hip
Posterior rotation of pelvis
50
Q

Innervation of semitendinosus

A

Tibial branch of sciatic nerve L4-S3

51
Q

Attachments of semimembranosus (2)

A

Posterior inferior ischial tuberosity

Posteromedial aspect of medial condyle of tibia

52
Q

Actions of semimembranosus (3)

A

Flexion at knee
Medial rotation of knee
Extension at hip

53
Q

Innervation of semimembranosus

A

Tibial branch sciatic nerve L4-S3

Anatomy (7 decks)

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