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Anatomy > Muscles of the Shoulder/Scapula > Flashcards

Muscles of the Shoulder/Scapula Flashcards

1
Q

Rhomboid Minor (Origin & Insertion)

A

O: Vertebral spines of C7-T1
I: Sup vertebral border of scapula

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2
Q

Rhomboid Minor (Actions)

A

Elevates, retracts, & rotates scapula down

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3
Q

Rhomboid Minor (Nerve & Artery)

A

N: Dorsal scapular N
A: Dorsal scapular A

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4
Q

Trapezius (Origin & Insertion)

A

O: Occipital region & spines of C2-T12
I: Scapular spine, acromion, & lat clavicle

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5
Q

Trapezius (Actions)

A

Elevates, depresses & retracts scapula
Rotates scapula up
I/O extends head/neck

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6
Q

Trapezius (Nerve & Artery)

A

N: Spinal accessory N XI
A: Transverse cervical A

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7
Q

Levator Scapulae (Origin & Insertion)

A

O: Transverse processes of C1-C4
I: Sup angle of scapula

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8
Q

Levator Scapulae (Actions)

A

Elevates scapula
Rotates scapula down
I/O lat flexes neck

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9
Q

Levator Scapulae (Nerve & Artery)

A

N: Dorsal scapular N
A: Dorsal scapular A

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10
Q

Rhomboid Major (Origin & Insertion)

A

O: Vertebral spines of T2-T5
I: Vertebral border of scapula

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11
Q

Rhomboid Major (Actions)

A

Elevates, retracts, & rotates scapula down

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12
Q

Rhomboid Major (Nerve & Artery)

A

N: Dorsal scapular N
A: Dorsal Scapular A

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13
Q

Latissimus Dorsi (Origin & Insertion)

A

O: Spines of T7-L5, Sup sacrum, & iliac crest
I: Scapular inf angle & lateral lip of humeral lesser tubercle

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14
Q

Latissimus Dorsi (Actions)

A 
A prime mover for extending & adducting shoulder
Int rotates shoulder
Rotates scapula down
Depresses & retracts scapula
I/O compresses ribcage
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15
Q

Latissimus Dorsi (Nerve & Artery)

A

N: Thoracodorsal N
A: Thoracodorsal A

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16
Q

Serratus Anterior (Origin & Insertion)

A

O: Anterolateral ribs 1-8
I: Ant vertebral border of the scapula

17
Q

Serratus Anterior (Actions)

A

Prime mover for protracting scapula
Depresses scapula
Rotates scapula up
I/O expands ribcage

18
Q

Serratus Anterior (Nerve & Artery)

A

N: Long thoracic N
A: Lat thoracic A

19
Q

Subscapularis (Origin & Insertion)

A

O: Subscapular fossa
I: Lesser tubercle of ant humerus

20
Q

Subscapularis (Actions)

A

Prime mover for internally rotating shoulder

Adducts & flexes shoulder

21
Q

Subscapularis (Nerve & Artery)

A

N: Upper & lower subscapular Nn
A: Subscapular A

22
Q

Supraspinatus (Origin & Insertion)

A

O: Supraspinous fossa of scapula
I: Sup greater tubercle of humerus

23
Q

Supraspinatus (Actions)

A

Abducts shoulder

24
Q

Supraspinatus (Nerve & Artery)

A

N: Suprascapular N
A: Suprascapular A

25
Q

Infraspinatus (Origin & Insertion)

A

O: Infraspinous fossa of scapula
I: Post greater tubercle of humerus

26
Q

Infraspinatus (Actions)

A

Prime mover for externally rotating shoulder

Helps adduct & extend shoulder

27
Q

Infraspinatus (Nerve & Artery)

A

N: Suprascapular N
A: Suprascapular A

28
Q

Teres Minor (Origin & Insertion)

A

O: Axillary border of the scapula
I: Post greater tubercle of the humerus

29
Q

Teres Minor (Actions)

A

Prime mover for externally rotating shoulder

Helps adduct & extend shoulder

30
Q

Teres Minor (Nerve & Artery)

A

N: Axillary N
A: Circumflex scapular A

31
Q

Teres Major (Origin & Insertion)

A

O: Inf angle of scapula
I: Med lip of bicipital sulcus

32
Q

Teres Major (Actions)

A

Adducts, extends, & internally rotates shoulder

33
Q

Teres Major (Nerve & Artery)

A

N: Lower subscapular N
A: Circumflex scapular A

34
Q

Deltoideus (Origin & Insertion)

A

O: Scapular spine, acromion, & lat clavicle
I: deltoid tuberosity of humerus

35
Q

Deltoideus- Anterior Head (Actions)

A

Internally rotates, flexes, & abducts shoulder

36
Q

Deltoideus- Superior Head (Actions)

A

Abducts shoulder

37
Q

Deltoideus- Posterior Head (Actions)

A

Externally rotates, extends, & abducts shoulder

38
Q

Deltoideus (Nerve & Insertions)

A

N: Axillary N
A: Ant & Post humeral circumflex Aa

Anatomy (13 decks)

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