Axillary & Arm Flashcards

1
Q

Bony Landmark: Anatomical Neck

A

Site of glenohumeral joint capsule

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2
Q

Bony Landmark: Humerus Head

A

Articulates with glenoid cavity

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3
Q

Bony Landmark: Greater Tubercle (3 Facets)

A

Superior Facet - Supraspinatus
Middle Facet - Infraspinatus
Inferior Facet - Teres Minor

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4
Q

Bony Landmark: Lesser Tubercle

A

Subscapularis

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5
Q

Bony Landmark: Intertubercular Sulcus (3 Attachments)

A

Lateral Lip: Pec Major
Medial Lip: Teres Major
Floor: Latissimus Dorsi

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6
Q

Bony Landmark: Shaft (3 Landmarks)

A

Surgical Neck

Sulcus for Radial Nerve

Deltoid Tuberosity

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7
Q

Bony Landmark: Capitulum

A

Articulates with Radius

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8
Q

Bony Landmark: Trochlea

A

Articulates with Trochlear Notch of Ulna

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9
Q

Bony Landmark: Lateral Epicondyle

A

Common Extensor Tendon

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10
Q

Bony Landmark: Lateral Supracondylar Ridge

A

Extensor Carpi Radials Longus
& Brachioradialis

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11
Q

Bony Landmark: Coronoid Fossa

A

Accommodates the Coronoid Process of Ulna

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12
Q

Bony Landmark: Medial Epicondyle

A

Common Flexor Tendon

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13
Q

Bony Landmark: Olecranon Fossa

A

Accommodates the Olecranon Process of Ulna

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14
Q

5 Muscles of Axillary & Arm

A

Anconeus
Biceps Brachii
Brachialis
Coracobrachialis
Triceps Brachii

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15
Q

Anconeus - Actions

A

Extension of Elbow

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16
Q

Anconeus - Innervation

A

Radial Nerve (C7-C8)

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17
Q

Biceps Brachii - Action

A

Flexion of shoulder & elbow
Supinate forearm

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18
Q

Biceps Brachii - Innervation

A

Musculocutaneous Nerve (C5-C6)

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19
Q

Brachialis - Action

A

Flexion of Elbow

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20
Q

Brachialis - Innervation

A

Musculocutaneous Nerve & Small Branch from Radial Nerve (C5-C6)

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21
Q

Coracobrachialis - Action

A

Flexion & Adduction of Shoulder

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22
Q

Coracobrachialis - Innervation

A

Musculocutaneous Nerve (C6-C7)

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23
Q

Triceps Brachii - Action

A

Extension of Shouder (long head)
Extension of Elbow (all heads)

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24
Q

Triceps Brachii - Innervation

A

Radial Nerve (C6-T1)

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25
Q

Anconeus - Attachments

A

Lateral Epicondyle of Humerus

To

Lateral Surface of the Olecranon Process

26
Q

Biceps Brachii - Attachments

A

Coracoid Process of Scapula (Short Head)
Supraglenoid Tubercle of Scapula (Long Head)

To

Radial Tuberosity & Deep Antebrachial Fascia (Aperoneus)

27
Q

Brachialis - Attachments

A

Distal Anterior Shaft of Humerus &
Lateral & Medial Intermuscular Septa to the Coronoid Fossa

To

Ulnar Tuberosity
Coranoid Process

28
Q

Coracobrachialis - Attachments

A

Coracoid Process

To

Proximal Medial Shaft of Humerus

29
Q

Triceps Brachii - Attachments

A

Long Head: Infraglenoid Tubercle of Scapula
Lateral Head: Proximal Posterolateral Shaft of Humerus
Medial Head: Distal Posteromedial Shaft of Humerus

To

Olecranon Process of Ulna

30
Q

Boundaries of Axilla

A

Superior: Clavicle & 1st Rib
Inferior: Skin of Armpit
Medial: Thoracic Wall // Serratus Anterior
Lateral: Humerus
Anterior: Pec Major
Posterior: Subscapular

31
Q

Content of Axilla

A

Neurovascular Bundle (Axillary Artery, Axillary Vein, Axillary Lymph Nodes)
3 Cords of Brachial Plexus

32
Q

Brachial Plexus - Root Level Nerves

A

Dorsal Scapular (C4-C5)
Long Thoracic (C5-C7)

33
Q

Brachial Plexus - Trunk Level Nerves

A

Suprascapular (C4-C6)
Subclavian (C5-C6)

34
Q

Brachial Plexus - Cord Level Nerves

A

Lateral Pectoral (C5-C7)
Upper Subscapular (C5-C7)
Thoracodorsal (C6-C8)
Lower Subscapular (C5-C7)
Medial Pectoral (C8-T1)
Medial Cutaneous Arm (C8-T1)
Medial Cutaneous Forearm (C8-T1)

35
Q

Brachial Plexus - Nerve Level Nerves

A

Musculocutaneous (C5-C7)
Axillary (C5-C6)
Radial (C5-T1)
Median (C5-T1)
Ulnar (C7-T1)

36
Q

Brachial Plexus: “Lines” @ Root

A

6 lines (One for Each Nerve)

Remember

37
Q

Brachial Plexus: “Lines” @ Trunk

A

3 Lines: Upper (C5-6), Middle (C7), Lower (C8-T1)

TO

38
Q

Brachial Plexus: “Lines” @ Divisions

A

6 Lines:
3 Lines Anterior (Middle Goes Up, Upper & Lower Goes Across)
3 Lines Posterior (Makes and Arrow to Middle Cord)

Drink

39
Q

Brachial Plexus: “Lines” @ Cords

A

3 Lines: Lateral, Posterior, Medial + Ansa Pectoralis

Cold

40
Q

Brachial Plexus: “Lines” @ Branches of Nerves

A

7 Lines:
2 from lateral - nerve + lateral root of __
2 from posterior - 2 nerves
2 from medial - nerve + medial root of __
1 from roots converging to make nerve

BEER

41
Q

Hand pneumonic for Branches of Nerves

A

3 Musketeers (Musculocutaneous - Top 3)
Were Assassinated (Axillary - Top 2)
By the 5 Mice (Medial - All)
5 Rats (Radius - All)
& 3 Unicorns (Ulnar (Bottom 3)

42
Q

Dorsal Scapular Nerve

A

C4-C5

Roots Segment

Post-Gang & Motor (no sensory)

Lavator Scapulae & Rhomboids

43
Q

Long Thoracic Nerve

A

C5 - C7

Roots Segment

Serratus Anterior

44
Q

Suprascapular Nerve

A

C4-C6

Upper Trunk Segment

Supraspinatus & Infraspinatus

45
Q

Subclavian Nerve

A

C5 - C6

Upper Trunk Segment

Subclavian Muscle

46
Q

Lateral Pectoral Nerve

A

C5-C7

Lateral Cord Segment

Pec Major (Clavicle) & Pec Minor

47
Q

Medial Pectoral Nerve

A

C8-T1

Medial Cord & Ansa Pectoralis

Pec Major (sternocostal head) & pec minor

48
Q

Medial Cutaneous of Arm & Forearm

A

C8-T1

Medial Cord Segment

No Motor

Skin Overlaying medial aspect of arm & forearm

49
Q

Upper Subscapular Nerve

A

C5-C6

Posterior Cord

Subscapularis

50
Q

Thoracodorsal Nerve

A

C6-C8

Posterior Cord

Latissimus Dorsi

51
Q

Lower Subscapular Nerve

A

C5-C6

Posterior Cord

Subscapularis & Teres Minor

52
Q

Musculocutaneous Nerve

A

C5-C7

Branch of Lateral Cord

Muscle branch - biceps brachii, Coracobrachialis, Brachialis
Lateral Cutaneous - (no motor) - skin overlying lateral aspect of forearm

53
Q

Ulnar Nerve

A

C7-T1

Branch of Medial Cord

Muscle Branches in Forearm - flexor carpi Ulnaris, flexor Digitorum profundus
Deep Terminal - 8 muscles
Palmar Cutaneous - (no motor) - skin ulnar side of palm
Dorsal Cutaneous - (no motor) - skin dorsal surface of digits 4&5

54
Q

Axillary Nerve

A

C5-C6

Branches of Posterior Cord

Muscle Branch - Deltoid & Teres Minor
Superior Lateral Cutaneous - (no motor) skin superior lateral aspect of arm

55
Q

Radial Nerve

A

C5-T1

Branch of Posterior Cord

Muscle Branch in arm - triceps Brachii & Brachialis
Muscle Branch in forearm - 12 muscles
Posterior Cutaneous (no motor) skin posterior aspect of forearm
Superficial Terminal (no motor) skin radial side of dorsal of hand

56
Q

Median Nerve

A

Lateral Root (C5-C7)
Medial Root (C8-T1)

Muscle branches in forearm
Anterior Interosseous
Palmar Cutaneous (no motor) skin radial aspect of palm
Muscular Branch of Hand
Recurrent Branch of Median Nerve
Common & Proper Palmar Digital Nerves (no motor) skin digits 1-4

57
Q

Triangular Space

A

Teres Minor, Teres Major, Long Head Triceps Brachii

Circumflex Scapular Artery

58
Q

Triceps Hiatus

A

Teres Major, Long Head Triceps, Humerus

Profunda Brachii Artery, Radial Nerve

59
Q

Anterior Compartment of Arm

A

Flexes Shoulder & Elbow
Musculocutaneous Nerve
Brachial Artery

Biceps, Coracobrachialis, Brachialis

60
Q

Posterior Compartment of Arm

(Content, Action, Nerve)

A

Extension Shoulder & Elbow
Radial Nerve
Profunda Brachii Artery

Triceps, Anconeus

61
Q

What creates the Anterior and Posterior Compartments of Arm?

A

Lateral & Medial Intermuscular Septum