scalenes Flashcards by Katrina Aguila | Brainscape

Q

sa: anterior scalene

A

TP C3-C6

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Q

ia: anterior scalene

A

first rib

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Q

nerve innervation: anterior scalene

A

cervical spinal nerve C4, C5, C6

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Q

muscle actions: anterior scalene

A

neck lateral flexion

1st rib elevation during forced inhalation

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Q

sa: middle scalene

A

TP C5-C7

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Q

ia: middle scalene

A

1st rib

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Q

nerve innervation: middle scalene

A

ventral rami of cervical spinal nerves

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Q

muscle action: middle scalene

A

neck lateral flexion

1st rib elevation during forced inhalation

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Q

sa: posterior scalene

A

TP C5-C7

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Q

ia: posterior scalene

A

2nd rib

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Q

nerve innervation of posterior scalene

A

ventral rami of cervical nerves C7, C8

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Q

muscle action: posterior scalene

A

neck lateral flexion

2nd rib elevation during forced inhalation

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Q

ma: subclavius

A

depresses and anchors clavicle

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Q

pa: subclavius

A

junction of the first rib and its costal cartilage

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Q

da: subclavius

A

inferior surface of middle surface of clavicle

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Q

nerve: subclavius

A

nerve to subclavius muscle (C5, C6)