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Back Anatomy > Superficial Muscles > Flashcards

Superficial Muscles Flashcards

1
Q

Trapezius

Origin

A

EOP
Medial 1/3 of superior nuchal line
Nuchal ligament
SP C7-T12

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2
Q

Trapezius

Insertion

A

Lateral 1/3 of clavicle
Spine of scapula
Acromion process

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3
Q

Trapezius

Innervation

A

Spinal accessory nerve, CN XI (motor)

ventral rami C3-C4 (proprioception)

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4
Q

Trapezius

Action

A

Upper Part: elevate scapula
Middle Part: retract scapula
Lower Part: depress scapula

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5
Q

Latissimus Dorsi

Origin

A 
Thoracolumbar fascia
SP T6-L5
Sacrum
Iliac crest
Ribs 8-12
Inferior angle of scapula
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6
Q

Latissimus Dorsi

Insertion

A

Floor of intertubercular groove of humerus

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7
Q

Latissimus Dorsi

Innveration

A

Thoracodorsal nerve C6-C8

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8
Q

Latissimus Dorsi

Action

A

Humerus: ADDuction
Extension
Medial rotation

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9
Q

Levator Scapulae

Origin

A

Posterior Tubercles of transverse processes of C1-C4

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10
Q

Levator Scapulae

Insertion

A

Superior angle of scapula

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11
Q

Levator Scapulae

Innervation

A

Dorsal scapular nerve (C5)

Ventral rami C3-C4

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12
Q

Levator Scapulae

Action

A

Scapula: elevation

Downward rotation

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13
Q

Rhomboid Minor

Origin

A

SP C7-T1

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14
Q

Rhomboid Minor

Insertion

A

Medial border of the scapula AT THE LEVEL of the scapular spine

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15
Q

Rhomboid Minor

Innervation

A

Dorsal scapular nerve (C5)

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16
Q

Rhomboid Minor

Action

A

Scapula: Retraction
Downward rotation
Scapular Stabilization

17
Q

Rhomboid Major

Origin

A

SP T2-T5

18
Q

Rhomboid Major

Insertion

A

Medial border of scapula INFERIOR to the scapular spine

19
Q

Rhomboid Major

Innervation

A

Dorsal scapular nerve (C5)

20
Q

Rhomboid Major

Action

A

Scapula: Retraction
Downward Rotation
Scapular stabilization

21
Q

Serratus Posterior Superior

Origin

A

Ligamentum nuchae

SP C7-T3

22
Q

Serratus Posterior Superior

Insertion

A

Superior borders of ribs 2-5

23
Q

Serratus Posterior Superior

Innervation

A

Ventral rami T2-T5

24
Q

Serratus Posterior Superior

Action

A

Ribs: Elevation of 2nd-5th ribs (helps with deep inspiration)

25
Q

Serratus Posterior Inferior

Origin

A

SP T11-L2

26
Q

Serratus Posterior Inferior

Insertion

A

Inferior borders of ribs 9-12

27
Q

Serratus Posterior Inferior

Innervation

A

Ventral rami T9-T12

28
Q

Serratus Posterior Inferior

Action

A

Ribs: Depression of 9th-12th ribs (helps with forced expiration)

Back Anatomy (4 decks)

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