Abdominal Wall Muscles, Nerve Roots, and Functions - Abdominal Wall Flashcards

1
Q

Anterolateral Wall Muscles

A

External Obliques, Internal Obliques, Transverse Abdomonis

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2
Q

Anterior Wall Muscles

A

Rectus Abdominus

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3
Q

Posterior Wall Muscles

A

Psoas Major & Quadratus Lumborum

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4
Q

ALW - External Oblique NR

A

Intercostal: T2-T11 & Subcostal: T12

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5
Q

ALW - Internal Oblique NR

A

Intercostal: T2-T11 , Subcostal: T12 , Iliohypogastic: L1 , Genitifemoral: L1-L2

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6
Q

ALW - Transverse Abdominus NR

A

Intercostal: T2-T11 , Subcostal: T12 , Iliohypogastic & Ilioinguinal: L1

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7
Q

AW - Rectus Abdominus NR

A

Intercostal: T2-T11 & Subcostal: T12

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8
Q

PW - Psoas Major NR

A

Femoral: L2-L4

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9
Q

PW - Quadratus Lumborum NR

A

Subcostal: T12 & Anterior Rami: L1-L4

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10
Q

External Oblique Function

A

Trunk Flexion
Ipsilateral SB & Contralateral RT

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11
Q

Internal Oblique Function

A

Trunk Flexion
Ipsilateral SB & RT

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12
Q

Transverse Abdominus Function

A

Compression & Ipsilateral RT
CORE muscle - Stabilizes spine

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13
Q

Rectus Abdominus Function

A

Trunk Flexion

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14
Q

Psoas Major Function

A

Open Chain: FLX/ER/ADD
Closed Chain: Trunk Flexion & Ipsilateral SB

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15
Q

Quadratus Lumborum Function

A

Depress 12th Rib: respiration
Ipsilateral SB(closed) & Hip Lift(open)

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16
Q

Arcuate Ligaments

A

Hesselback/Inguinal Triangle
Medial, Inferior, Lateral

17
Q

Medial Arcuate Ligament

A

Lateral Rectus Abdominum

18
Q

Inferior Arcuate Ligament

A

Inguinal Ligament

19
Q

Lateral Arcuate Ligament

A

Umbilical Fold