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HDS Week 1 > Anatomy - Superficial Back Muscles > Flashcards

Anatomy - Superficial Back Muscles Flashcards

1
Q

Trapezius: Innervation?

A

Accessory Nerve (aka cranial nerve 11 or XI)

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2
Q

Trapezius: Actions? (Upper, middle, lower)

A

Upper fibers: Elevates scapula
Middle fibers: Retracts scapula
Lower fibers: Pull scapula inferiorly

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3
Q

Trapezius: Origins? (3)

A

Skull
Ligamentum Nuchae
Spinous processes of C7 - T12

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4
Q

Trapezius: Attachments? (3)

A

Clavical
Acromion
Scapula Spine

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5
Q

What happens if accessory nerve is damaged?

A 
Possibilities:
Difficulty shrugging shoulders
Muscle wasting
Partial paralysis of sternocleidomastoid
Asymmetric neckline
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6
Q

Latissimus Dorsi: Origins? (4)

A

Spinous processes T6 - T12
Iliac crest
Thoracocolumbar fascia
Bottom three ribs

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7
Q

Latissimus Dorsi: Innervation?

A

Dorsal scapular nerve

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8
Q

Latissimus Dorsi: Actions? (3)

A

Extends upper limb
Adducts upper limb
Medially rotates upper limb

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9
Q

Levator Scapulae: Origins?

A

Transverse processes of C1 - C4

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10
Q

Latissimus Dorsi: Attachments?

A

Intertubecular sulcus of the humerus

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11
Q

Levator Scapulae: Attachments?

A

Medial border of scapula

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12
Q

Levator Scapulae: Actions?

A

Elevates the scapula

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13
Q

Rhomboid Major: Origins?

A

Spinous processes T2 - T5

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14
Q

Rhomboid Major: Attachments?

A

Medial border of scapula, between the spine and inferior angle.

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15
Q

Rhomboid Major: Innervation?

A

Dorsal scapular nerve

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16
Q

Rhomboid Major: Actions? (2)

A

Retracts scapula

Rotates scapula

17
Q

Rhomboid Minor: Origins?

A

Spinous processes C7 - T1

18
Q

Rhomboid Minor: Attachments?

A

Medial border of the scapula, at the level of the spine.

19
Q

Rhomboid Minor: Innervation?

A

Dorsal scapular nerve

20
Q

Rhomboid Minor: Actions? (2)

A

Retracts scapula

Rotates scapula

HDS Week 1 (4 decks)

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