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01 - Hip > Muscles > Flashcards

Muscles Flashcards

1
Q

Iliacus

A

Origin: Iliac Fossa
Insertion: Conjoined tendon with psoas major to Lesser
trochanter
Action: Hip flexion (trunk flexion if legs = fixed)
Innervation: Femoral nerve (L2-4)

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2
Q

Psoas Major

A

Origin: Transverse processes of T12-L4
Insertion: Conjoined tendon with iliacus to lesser
trochanter
Action: Hip flexion (trunk flexion if legs=fixed)
Innervation: Spinal nerves L1-L3

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3
Q

Pectineus

A

Origin: Superior Pubic Ramus
Insertion: Proximal medial aspect of Linea Aspera (Pectineal line)
Action: Flexion of hip
: Adduction of hip
Innervation: Femoral Nerve L2-4+ Obturator nerve L2-3

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4
Q

Rectus Femoris

A

Origin: Straight head: AIIS
: Reflected head: Roughened area on ilium above acetabulum
Insertion: Superior pole of patella via quadriceps tendon
Action: Flexes hip
: Extends knee
Innervation: Femoral Nerve L2-4

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5
Q

Sartorius

A

Origin: ASIS
Insertion: Antero-medial surface of proximal tibia (pes anserinus)
Action: Flexes hip
: Abducts hip
: Laterally rotates hip
: Medially rotates flexed knee
Innervation: Femoral Nerve L2-3

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6
Q

Gracilis

A

Origin: Inferior Pubic Ramus
Insertion: Antero-medial surface of proximal tibia (pes anserinus)
Action = Assistor in: Flexes hip
: Adducts hip
: Medially rotates hip
: Flexes knee
: Medially rotates knee
Innervation: Obturator Nerve L3-4

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7
Q

Tensor Fascia Latae

A

Origin: ASIS
Insertion: Gerdy’s tubercle (prox. anterolateral tibia) +
ITB
Action: Flexes hip
: Medially rotates
: Abducts hip
Innervation: Superior Gluteal Nerve L4-S1

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8
Q

Gluteus Maximus

A

Origin: Outer aspect of Ilium/Sacrum/Coccyx
Insertion: Gluteal tuberosity of femur (prox. lateral aspect of linea aspera)
: ITB
Action: Extends hip (extends trunk if legs=fixed)
: Laterally rotates hip
Innervation: Inferior Gluteal Nerve L5-S2

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9
Q

Biceps Femoris

A

Origin: Long head: Inferomedial aspect of ischial tuberosity
: Short head: Lateral lip of linea aspera & Lat supracondylar ridge
Insertion: Apex of fibula head (bifurcates round lcl)
: Small slip to post lateral femoral condyle
Action: Extends hip (long head)
: Flexes knee
: Laterally rotates knee
Innervation: Sciatic Nerve L5-S2 (+S3 for long head)

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10
Q

Semitendinosus

A

Origin: Inferomedial aspect of ischial tuberosity
Insertion: Anteromedial part of proximal tibia (pes anserinus)
Action: Extends hip
: Flexes knee
: Medially rotates knee
Innervation: Sciatic nerve L5-S2

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11
Q

Semimembranosus

A

Origin: Superolateral aspect of ischial tuberosity
Insertion: Posteromedial surface of medial tibial condyle
Action: Extends hip
: Flexes knee
: Medially rotates knee
Innervation: Sciatic nerve L5-S2

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12
Q

Adductor Magnus

A

Origin: Inferior Pubic Ramus
: Ischial tuberosity (ant. to hamstrings)
Insertion: All of line aspera
: Adductor tubercle on superior aspect of medial epicondyle
Action: superior: adducts/medially rotates/flexes hip
inferior: adducts/extends hip
Innervation: Sup: Obturator nerve L3-4
Inf: Sciatic Nerve L4

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13
Q

Adductor Longus:

A 
Origin: Body of pubis
Insertion: Middle 2/3 of linea aspera (med lip)
Action: Adducts hip
           : Medially rotates hip
Innervation: Obturator Nerve L3-4
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14
Q

Adductor Brevis

A

Origin: Inferior Pubic Ramus
Insertion: Inf. aspect of lesser trochanter
: Pectineal line of linea aspera
Action: Adducts hip
: Medially Rotates hip
Innervation: Obturator Nerve L3-4

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15
Q

Gluteus Medius

A

Origin: Outer surface of Ilium (inf. to iliac crest)
Insertion: Lateral greater trochanter
Action: Abducts hip
: Ant fibres: Medially rotates hip
Innervation: Superior Gluteal Nerve L4-S1

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16
Q

Gluteus Minimus

A

Origin: Outer surface of ilium
Insertion: Anterior Surface of greater trochanter
Action: Abducts hip
: Ant. fibres: medially rotates hip
Innervation: Superior Gluteal Nerve L4-S1

17
Q

Piriformis

A 
Origin: Internal surface of sacrum 
          : Gluteal surface of Ilium
Insertion: Greater trochanter
Action: Lateral rotation of hip
           : Abduction of hip (if flexed)
Innervation: Sacral Nerves S1-2
18
Q

Name the other deep lateral rotators

A 
Gemellus Superior
Gemellus Inferior 
Obturator Internus 
Obturator Externus
Quadratus Femoris

01 - Hip (6 decks)

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