Superficial Back Muscles Flashcards

1
Q

origin of the upper trapezius

A

occipital bone; spinous processes of C1-C7

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2
Q

origin of the middle trapezius

A

spinous processes of T1-T4

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3
Q

origin of the lower trapezius

A

spinous processes of T5-T12

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4
Q

insertion of the upper trapezius

A

clavicle

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5
Q

insertion of the middle trapezius

A

scapular acromion

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6
Q

insertion of the lower trapezius

A

scapular spine

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7
Q

innervation of trapezius (upper, middle, and lower)

A

accessory nerve

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8
Q

action of upper trapezius

A

draws scapula obliquely upward

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9
Q

action of middle trapezius

A

draws scapula medially

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10
Q

action of lower trapezius

A

draws scapula medially downward

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11
Q

origin of latissimus dorsi

A

spinous processes or T7-T12 vertebrae, scapula, 9th-12th ribs, and iliac crest

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12
Q

insertion of latissimus dorsi

A

floor of intertubercular groove

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13
Q

innervation of latissimus dorsi

A

thoracodorsal nerve (C6-C8)

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14
Q

action of latissimus dorsi

A

internal rotation, ADduction, and extension

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15
Q

origin of rhomboid minor

A

spinous processes of C6 and C7

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16
Q

origin of rhomboid major

A

spinous processes of T1-T4 vertebrae

17
Q

insertion of rhomboid minor

A

medial border of scapula

18
Q

insertion of rhomboid major

A

below scapular spine

19
Q

innervation of rhomboid major and minor

A

dorsal scapular nerve

20
Q

action of rhomboid major and minor

A

draws scapular medially upward

21
Q

origin of levator scapulae

A

transverse processes of C1-C4

22
Q

insertion of levator scapulae

A

scapula (superior angle)

23
Q

innervation of levator scapulae

A

dorsal scapular nerve

24
Q

action of levator scapulae

A

scapular ADduction and elevation