Trunk Flashcards

1
Q

origin: ribs 5-12
insertion: linea alba
action: laterally rotates trunk

A

external abdominal oblique

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2
Q

origin: iliac crest
insertion: linea alba
action: laterally rotates trunk

A

internal abdominal oblique

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3
Q

origin: iliac crest
insertion: linea alba
action: laterally rotates trunk

A

transversus abdominis

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4
Q

origin: crest of pubis
insertion: xiphoid process
action: compresses abdominal wall

A

rectus abdominis

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5
Q

origin: ribs 1-8
insertion: vertebral border
action : abducts scapula

A

serratus anterior

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6
Q

origin: inferior border of a rib
insertion: superior border of rib below
action: elevates ribs

A

external intercostals

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7
Q

origin: inferior border of a rib
insertion: superior border of rib below
action: depresses ribs

A

internal intercostals

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8
Q

origin: lowers ribs
insertion: central tendon
action: inspiration (contraction)

A

diaphragm

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9
Q

origin: vertebral column
insertion: vertebral column
action: extends and rotates vertebral column and head

A

Iliocostalis, longissimus, spinalis

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10
Q

origin: sacrum
insertion: vertebral column
action: extends and rotates vertebral column

A

multifidus

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11
Q

origin: posterior iliac crest
insertion: rib 12
action: extends and abducts vertebral column

A

Quadratus lumborum

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12
Q

origin: spines of t2-5
insertion: lower one third of vertebral border of scapula
action: adducts scapula

A

rhomboideus major

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13
Q

origin: spines c7-t1
insertion: vertebral border of scapula at scapular spine
action: adducts scapula

A

rhomboideus minor

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14
Q

origin: ligamentum nuchae
insertion: occipital and temporal bone
action: extends and rotates head

A

splenius

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15
Q

origin: c7-t12
insertion: occipital bone
action: extends head

A

semispinalis

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