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Anatomy Muscle Tables > Shoulder > Flashcards

Shoulder Flashcards

0
Q

Deltoid insertion

A

Deltoid tuberosity of humerus

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1
Q

Deltoid origin

A

Spine of the scapula, acromion, lateral 1/3 of clavicle

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2
Q

Deltoid innervation

A

Axillary nerve

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3
Q

Deltoid action

A

Abducts arm; anterior fibers can flex arm, posterior fibers can extend arm

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4
Q

Supraspinatus origin

A

Supraspinous fossa

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5
Q

Supraspinatus insertion

A

Greater tubercle of humerus (superior part)

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6
Q

Supraspinatus innervation

A

Suprascapular nerve

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7
Q

Supraspinatus action

A

Abducts arm

also responsible for initiating abduction

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8
Q

Infraspinatus origin

A

Infraspinous fossa

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9
Q

Infraspinatus insertion

A

Greater tubercle of humerus (middle part)

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10
Q

Infraspinatus innervation

A

Suprascapular nerve

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11
Q

Infraspinatus action

A

Laterally rotates arm

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12
Q

Teres minor origin

A

Lateral border of scapula

upper half

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13
Q

Teres minor insertion

A

Greater tubercle of humerus (inferior part)

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14
Q

Teres minor innervation

A

Axillary nerve

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15
Q

Teres minor action

A

Laterally rotates arm

16
Q

Teres major origin

A

Lateral border of scapula

lower half and inferior angle

17
Q

Teres major insertion

A

Anterior side of humerus (medial lip of intertubercular groove)

18
Q

Teres major innervation

A

Lower subscapular nerve

19
Q

Teres major action

A

Extends and medially rotates arm

20
Q

Subscapularis origin

A

Subscapular fossa

21
Q

Subscapularis insertion

A

Lesser tubercle of humerus

22
Q

Subscapularis innervation

A

Upper and Lower subscapular nerves

23
Q

Subscapularis action

A

Adducts and medially rotates arm

24
Q

Pectoralis major origin

A

Clavicular head: medial ½ of clavicle

Sternocostal head: sternum and adjacent costal cartilages

25
Q

Pectoralis major insertion

A

Anterior side of humerus (lateral lip of intertubercular groove)

26
Q

Pectoralis major innervation

A

Medial and Lateral pectoral nerves

27
Q

Pectoralis major action

A

Flexes, adducts and medially rotates arm

28
Q

Pectoralis minor origin

A

Ribs 3-5

29
Q

Pectoralis minor insertion

A

Coracoid process of scapula

30
Q

Pectoralis minor innervation

A

Medial pectoral nerve

31
Q

Pectoralis minor action

A

Depresses scapula and assists with protraction

32
Q

Serratus anterior origin

A

Upper ribs (typically 1-8)

33
Q

Serratus anterior insertion

A

Medial border of the scapula (anterior side)

34
Q

Serratus anterior innervation

A

Long thoracic nerve

35
Q

Serratus anterior action

A

Protracts and laterally rotates scapula

Anatomy Muscle Tables (16 decks)

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