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Anatomy > Intrinsic(scapulohumoral) & Posterior Arm > Flashcards

Intrinsic(scapulohumoral) & Posterior Arm Flashcards

1
Q

Deltoid origin

A

Lateral 1/3 of clavicle
Acromion process
Scapula spine

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2
Q

Deltoid insertion

A

Deltoid tuberosity

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3
Q

Deltoid action(each part)

A

Abduct arm

Anterior: flex, medically rotate, horizontally adduct arm

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4
Q

Deltoid nerve

A

Axillary C5-6

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5
Q

Deltoid blood supply

A

Posterior humoral circumflex A

Deltoid br. Of thoracoacromial trunk

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6
Q

Supraspinatus origin

A

Supraspinous fossa

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7
Q

Supraspinatus insertion

A

Superior facet of greater tubercle

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8
Q

Supraspinatus action

A

Abduct arm
Lateral rotation(weak)
Stabilization

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9
Q

Supraspinatus nerve

A

Suprascapular nerve

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10
Q

Supraspinatus blood supply

A

Suprascapular artery

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11
Q

Infraspinatus origin

A

Infraspinous fossa

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12
Q

Infraspinatus insertion

A

Middle facet of greater tubercle

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13
Q

Infraspinatus action

A

Lateral rotation stabilization

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14
Q

Infraspinatus nerve

A

Suprascapular nerve C5-6

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15
Q

Infraspinatus blood supply

A

Suprascapular A., scapular circumflex A.

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16
Q

Teres minor origin

A

Upper 2/3 axillary border of scapula

17
Q

Teres minor insertion

A

Inferior facet of greater tuberosity

18
Q

Teres minor action

A

Laterally rotate arm
Stabilization
Adduct arm (weak)
Horizontally adduct arm (weak)

19
Q

Teres minor nerve

20
Q

Teres minor blood supply

A

Scapular circumflex

21
Q

Teres major origin

A

Inferior angle of scapula

22
Q

Teres major insertion

A

Intertubercular sulcus medial lip

23
Q

Teres major action

A

Medial rotation
Extend arm
Adduct arm

24
Q

Teres major nerve

A

Lower subscapular

25
Q

Teres major blood supply

A

Scapular circumflex A.

26
Q

Triceps brachii origins

A

Long: infraglenoid tubercle
Lateral: posterior humerous above radial groove
Medial: posterior humerous below radial groove

27
Q

Triceps brachii insertion

A

Proximal surface of olecranon process

28
Q

Triceps brachii action

A

Extend forearm

Long: extend arm, horizontal abduction

29
Q

Triceps brachii nerve

30
Q

Triceps brachii blood supply

A

Profunda brachii A

31
Q

Anconeus origin

A

Lateral epicondyle

32
Q

Anconeus insertion

A

Lateral side of olecranon

33
Q

Anconeus action

A 
Extend forearm 
Abduct ulna(pronation)
Stabilize elbow joint
34
Q

Anconeus nerve

A

Posterior interosseous nerve(C6-8)

35
Q

Anconeus blood supply

A

Profunda brachii A br.

Anatomy (30 decks)

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