Muscles of the Trunk (Lab) Flashcards by Rusty Shackleford

Q

A

External Intercostals

O: Inferior border of rib above

I: Superior border of rib below

A: Elevates ribs (during inhalation)

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Q

A

Internal Intercostals

O: Superior border of rib below

I: Inferior border of rib above

A: Depresses ribs (during forced exhalation)

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Q

A

Rectus abdominis

O: Pubic symphysis

I: Costal Cartilages

A: Flex trunk; compress abdomen

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Q

A

Rectus abdominis

O: Pubic symphysis

I: Costal Cartilages

A: Flex trunk; compress abdomen

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Q

A

External Oblique

O: Lower Ribs

I: Linea alba; inguinal ligament

A: flex Trunk; compress abdomen

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Q

A

External Oblique

O: Lower Ribs

I: Linea alba; inguinal ligament

A: flex Trunk; compress abdomen

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Q

A

Internal Oblique

O: Iliac crest of ilium

I: Linea alba; inguinal ligament

A: Flex trunk; compress abdomen

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Q

A

Internal Oblique

O: Iliac crest of ilium

I: Linea alba; inguinal ligament

A: Flex trunk; compress abdomen

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Q

A

Transverse Abdominis

O: Lumbar vertebrae

I: Linea alba; Inguinal ligament

A: Flex trunk; compress abdomen

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Q

A

Transverse Abdominis

O: Lumbar vertebrae

I: Linea alba; Inguinal ligament

A: Flex trunk; compress abdomen

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Q

A

Erector Spinae (group of muscles along the posterior side side of vertebrae)

A: extend trunk

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Q

A

Linea Alba

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Q

A

Linea Alba

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Q

A

Tendinous Intersections

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