Muscles AION Flashcards by Dylan Weaver | Brainscape

Q

Action of external oblique

A

Rotate and flex trunk

Compress and support abdominal viscera

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Q

Action of internal oblique

A

Flex and rotate trunk

Compress and support abdominal viscera

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Q

Action of transversus abdominis

A

Flex and rotate trunk

Compress and support abdominal viscera

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Q

Action: rectus abdominis

A

Flex trunk

Compress abdominal viscera

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Q

Action; pyramidalis (when present)

A

Tenses linea alba

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Q

Action; cremaster muscle

A

Elevates testis

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Q

Innervation: cremaster muscle

A

L1 and L2 via genital branch of genitofemoral nerve

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Q

Innervation: pyramidalis

A

T12 subcostal or L1

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Q

Innervation: rectus abdominis

A

T7 - T11 thoracoabdominal nerves

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Q

Innervation: transversus abdominis

A

T7-L1

T7-T11 thoracoabdominal nerves

T12 subcostal N

L1 - iliohypogastric and ilioinguinal N.

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Q

Innervation: internal oblique

A

T7 - L1

T7 - T11 thoracoabdominal N

T12 subcostal N

L1 - ilioinguinal and iliohypogastric N

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Q

Innervation: external oblique

A

T7-T12

T7-T11 - thoracoabdominal N

T12 Subcostal N.

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Q

Action: quadratus lumborum

A

Bends trunk laterally

Fixes 12th rib during inspiration

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Q

Action: psoas major

A

Flex thigh and trunk

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Q

Action: psoas minor

A

Weak flexor of trunk

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Q

Action: iliacus

A

Flexes thigh and trunk

Q

Innervation: quadratus lumborum

A

T12, L1-L4

Q

Innervation: psoas major

A

L2 - L4 via lumbar plexus

Q

Innervation: psoas minor

A

L1

Q

Innervation: iliacus

A

L2-L4

Femoral nerve