superficial / intermediate back muscle group Flashcards by Desirae Steier

Q

trapezius origin

A

nuchal ligament
occipital protuberance
C7-T12

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Q

trapezius insertion

A

clavicle
scapular spine

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Q

trapezius action

A

retract
elevate
rotate scapula superiorly

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Q

trapezius innervation

A

CN XI, C3-C4

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Q

latissimus dorsi origin

A

SP of T7-T12
thoracolumbar fascia
iliac crest
inferior ribs

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Q

latissimus dorsi insertion

A

intertubercular sulcus of humerus

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Q

latissimus dorsi action

A

elevate
ADD
medially rotate humerus

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Q

latissimus dorsi innervation

A

thoracodorsal nerve

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Q

rhomboid major origin

A

SP T2-T5

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Q

rhomboid major insertion

A

medial border of scapula

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Q

rhomboid major action

A

retract, rotate and fix scapula to body wall

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Q

rhomboid major innervation

A

dorsal scapular nerve

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Q

rhomboid minor origin

A

nuchal ligament
CP C7/T1

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Q

rhomboid minor insertion

A

medial end of scapular spine

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Q

rhomboid minor action

A

retract, rotate, and fix scapula to body wall

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Q

rhomboid minor innervation

A

dorsal scapular nerve

Q

levator scapulae origin

A

TP C1-C4

Q

levator scapulae insertion

A

superior angle of scapula

Q

levator scapulae action

A

elevate
inferiorly rotate scapula

Q

levator scapulae innervation

A

dorsal scapular nerve

Q

serrates posterior superior origin

A

nuchal ligament
SP C7-T3

Q

serrates posterior superior insertion

A

superior border ribs #2-4

Q

serrates posterior superior action

A

elevate ribs

Q

serratus posterior superior innervation

A

intercostal nerve

serrates posterior inferior origin

SP T11-L2

serratus posterior inferior insertion

inferior border ribs #8-12

serratus posterior inferior action

depress ribs

serratus posterior inferior innervation

anterior rami T9-T12