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ACMT > Module 3 Muscles > Flashcards

Module 3 Muscles Flashcards

1
Q

Teres Major - Innervation

A

Lower subscapular nerve

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2
Q

Teres major - Origin

A

Inferior angle & lower 1/3 of lateral border of the scapula

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3
Q

Teres major - insertion

A

Crest of the lesser tubercle of the humerus

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4
Q

Teres major - actions

A

EXTEND the glenohumeral joint
ADDUCT the glenohumeral joint
MEDIALLY ROTATE the glenohumeral joint

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5
Q

Supraspinatus - Innervation

A

Suprascapular nerve

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6
Q

Supraspinatus - origin

A

Supraspinous fossa of the scapula

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7
Q

Supraspinatus - Insertion

A

Greater tubercle of the humerus

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8
Q

Supraspinatus - Actions

A

ABDUCT the glenohumeral joint
STABILIZE the head of the humerus in the glenoid cavity

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9
Q

Infraspinatus - Innervation

A

Suprascapular nerve

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10
Q

Infraspinatus - origin

A

Infraspinous fossa of the scapula

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11
Q

Infraspinatus - insertion

A

Greater tubercle of the humerus

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12
Q

Infraspinatus - actions

A

LATERALLY ROTATE the glenohumeral joint
ADDUCT the glenohumeral joint

STABILIZE the head of the humerus in the glenoid cavity

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13
Q

Teres Minor - Innervation

A

Axillary nerve

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14
Q

Teres minor - origin

A

Upper 2/3 of lateral border of the scapula

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15
Q

Teres minor - insertion

A

Greater tubercle of the humerus

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16
Q

Teres minor - actions

A

LATERALLY ROTATE the glenohumeral joint
ADDUCT the glenohumeral joint

STABILIZE the head of the humerus in glenoid cavity

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17
Q

Subscapularis - Innervation

A

Upper and lower subscapular nerves

18
Q

Subscapularis - origin

A

Subscapular fossa of the scapula

19
Q

Subscapularis - insertion

A

Lesser tubercle of the humerus

20
Q

Subscapularis - Actions

A

MEDIALLY ROTATE the glenohumeral joint

STABILIZE the head of the humerus in glenoid cavity

21
Q

Latissimus Doris - Innervation

A

Thoracodorsal nerve

22
Q

Latissimus Doris - origin

A
  • Inferior angle of the scapula
  • Spinous processes of the last 6 thoracic vertebrae
  • Last 3 or 4 ribs
  • Thoracolumbar fascia
  • Posterior iliac crest
23
Q

Latissimus Doris - insertion

A

Intertubercular groove of the humerus

24
Q

Latissimus Doris - actions

A

EXTEND the glenohumeral joint
ADDUCT the glenohumeral joint
MEDIALLY ROTATE the glenohumeral joint

25
Q

Deltoid - Innervation

A

Axillary nerve

26
Q

Deltoid - origin

A

Lateral 1/3 of the clavicle, acromion and spine of the scapula

27
Q

Deltoid - insertion

A

Deltoid tuberosity

28
Q

Deltoid - actions

A

ALL:
ABDUCT the glenohumeral joint

ANTERIOR FIBRES:
FLEX the glenohumeral joint
MEDIALLY ROTATE the glenohumeral joint
HORIZONTALLY ADDUCT the glenohumeral joint

POSTERIOR FIBRES:
EXTEND the glenohumeral joint
LATERALLY ROTATE the glenohumeral joint
HORIZONTALLY ABDUCT the glenohumeral joint

29
Q

Biceps brachii - Innervation

A

Musculocutaneous nerve

30
Q

Biceps brachii - origin

A

SHORT HEAD:
Coracoid process of the scapula

LONG HEAD:
Supraglenoid tubercle of the scapula

31
Q

Biceps brachii - actions

A

FLEX the humeroulnar joint (elbow)
SUPINATE the radioulnar joint (forearm)
FLEX the glenohumeral joint (shoulder)

32
Q

Triceps brachii - Innervation

A

Radial nerve

33
Q

Triceps brachii - origin

A

LONG HEAD:
Infraglenoid tubercle of the scapula

LATERAL HEAD:
Posterior surface of proximal 1/2 of humerus

MEDIAL HEAD:
Posterior surface of distal 1/2 humerus

34
Q

Triceps brachii - insertion

A

Olecranon process of the ulna

35
Q

Triceps brachii - actions

A

ALL:
EXTEND the humeroulnar joint

LONG HEAD:
EXTEND the glenohumeral joint
ADDUCT the glenohumeral joint

36
Q

Brachioradialis - Innervation

A

Radial nerve

37
Q

Brachioradialis - origin

A

Proximal 2/3 of the lateral supracondylar ridge of the humerus

38
Q

Brachioradialis - insertion

A

Styloid process of the radius

39
Q

Brachioradialis - actions

A

FLEX the humeroulnar joint
Assist to PRONATE and SUPINATE the humeroradial joints when these movements are resisted

40
Q

Biceps Brachii - Insertion

A
  • Tuberosity of the radius
  • aponeurosis of the biceps brachii

ACMT (20 decks)

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