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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
Attachments of vastus intermedius (3)
Anterior and lateral surface of proximal 2/3 of femur Lateral intermuscular septum Superior border of patella via quadriceps tendon
26
Action of vastus intermedius
Extension of knee
27
Innervation of vastus intermedius
Femoral nerve L2-L4
28
Layers of adductors Superficial (3) Middle (1) Deep (1)
Superficial: pectineus, adductor longus, gracilis Middle: adductor brevis Deep: adductor magnus
29
Attachments of gracilis (3)
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
Actions of gracilis (3)
Knee flexion Medial rotation of knee Adduction of hip
31
Innervation of gracilis
Obturator nerve L2-L4
32
Attachments of pectineus (3)
Superior pubic ramus Iliopubic eminence Pectineal line of femur
33
Actions of pectineus (3)
Adduction Flexion of hip Assists medial rotation of hip
34
Innervation of pectineus
Femoral nerve L2-L4
35
Fibre direction of pectineus
Quadrangular muscle | Oblique inferior lateral fibres
36
Attachments of adductor longus (2)
Body of pubis inferior to tubercle | Mid third of medial lip of linea aspera
37
Actions of adductor longus (2)
Adduction at hip | Assists flexion of hip
38
Innervation of adductor longus
Obturator nerve L2-L4
39
Attachments of adductor brevis (4)
Body of pubis Inferior ramus of pubis Distal 2/3 of pectineal line Proximal lip of medial half of linea aspera
40
Actions of adductor brevis (2)
Adduction at hip | Assists flexion of hip
41
Innervation of adductor brevis
Obturator nerve L2-L4
42
Attachments of adductor Magnus (5)
Hamstring portion- Ischial tuberosity Adductor tubercle Adductor portion- Inferior ramus of pubis Middle linea aspera Medial supracondylar ridge
43
Actions of adductor Magnus (5)
Adduction of hip Hamstring- Hip extension Hip medial rotation Adductor portion- Flexion of hip Lateral rotation of hip
44
Innervation of adductor Magnus
Adductor part femoral nerve L2-L4 | Hamstring part sciatic nerve L4-S3
45
Attachments of biceps femoris (8)
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
Actions of biceps femoris (3)
Flexion of knee Extension of hip Lateral rotation of knee
47
Innervation of biceps femoris
Long head- tibial branch sciatic nerve L4-S3 | Short head- peroneal branch of sciatic nerve L5-S3
48
Attachments of semitendinosus (3)
Posterior ischial tuberosity Proximal medial surface of tibial tuberosity (pes an serine) Fascia of the leg
49
Actions of semitendinosus (5)
``` Flexion of knee Medial rotation of knee Extension of hip Medial rotation of hip Posterior rotation of pelvis ```
50
Innervation of semitendinosus
Tibial branch of sciatic nerve L4-S3
51
Attachments of semimembranosus (2)
Posterior inferior ischial tuberosity | Posteromedial aspect of medial condyle of tibia
52
Actions of semimembranosus (3)
Flexion at knee Medial rotation of knee Extension at hip
53
Innervation of semimembranosus
Tibial branch sciatic nerve L4-S3

Anatomy (7 decks)

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