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Clinical Anatomy > Axillary & Arm > Flashcards

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
Anconeus - Attachments
Lateral Epicondyle of Humerus To Lateral Surface of the Olecranon Process
26
Biceps Brachii - Attachments
Coracoid Process of Scapula (Short Head) Supraglenoid Tubercle of Scapula (Long Head) To Radial Tuberosity & Deep Antebrachial Fascia (Aperoneus)
27
Brachialis - Attachments
Distal Anterior Shaft of Humerus & Lateral & Medial Intermuscular Septa to the Coronoid Fossa To Ulnar Tuberosity Coranoid Process
28
Coracobrachialis - Attachments
Coracoid Process To Proximal Medial Shaft of Humerus
29
Triceps Brachii - Attachments
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
Boundaries of Axilla
Superior: Clavicle & 1st Rib Inferior: Skin of Armpit Medial: Thoracic Wall // Serratus Anterior Lateral: Humerus Anterior: Pec Major Posterior: Subscapular
31
Content of Axilla
Neurovascular Bundle (Axillary Artery, Axillary Vein, Axillary Lymph Nodes) 3 Cords of Brachial Plexus
32
Brachial Plexus - Root Level Nerves
Dorsal Scapular (C4-C5) Long Thoracic (C5-C7)
33
Brachial Plexus - Trunk Level Nerves
Suprascapular (C4-C6) Subclavian (C5-C6)
34
Brachial Plexus - Cord Level Nerves
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
Brachial Plexus - Nerve Level Nerves
Musculocutaneous (C5-C7) Axillary (C5-C6) Radial (C5-T1) Median (C5-T1) Ulnar (C7-T1)
36
Brachial Plexus: “Lines” @ Root
6 lines (One for Each Nerve) *Remember*
37
Brachial Plexus: “Lines” @ Trunk
3 Lines: Upper (C5-6), Middle (C7), Lower (C8-T1) *TO*
38
Brachial Plexus: “Lines” @ Divisions
6 Lines: 3 Lines Anterior (Middle Goes Up, Upper & Lower Goes Across) 3 Lines Posterior (Makes and Arrow to Middle Cord) *Drink*
39
Brachial Plexus: “Lines” @ Cords
3 Lines: Lateral, Posterior, Medial + Ansa Pectoralis *Cold*
40
Brachial Plexus: “Lines” @ Branches of Nerves
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
Hand pneumonic for Branches of Nerves
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
Dorsal Scapular Nerve
C4-C5 Roots Segment Post-Gang & Motor (no sensory) Lavator Scapulae & Rhomboids
43
Long Thoracic Nerve
C5 - C7 Roots Segment Serratus Anterior
44
Suprascapular Nerve
C4-C6 Upper Trunk Segment Supraspinatus & Infraspinatus
45
Subclavian Nerve
C5 - C6 Upper Trunk Segment Subclavian Muscle
46
Lateral Pectoral Nerve
C5-C7 Lateral Cord Segment Pec Major (Clavicle) & Pec Minor
47
Medial Pectoral Nerve
C8-T1 Medial Cord & Ansa Pectoralis Pec Major (sternocostal head) & pec minor
48
Medial Cutaneous of Arm & Forearm
C8-T1 Medial Cord Segment No Motor Skin Overlaying medial aspect of arm & forearm
49
Upper Subscapular Nerve
C5-C6 Posterior Cord Subscapularis
50
Thoracodorsal Nerve
C6-C8 Posterior Cord Latissimus Dorsi
51
Lower Subscapular Nerve
C5-C6 Posterior Cord Subscapularis & Teres Minor
52
Musculocutaneous Nerve
C5-C7 Branch of Lateral Cord Muscle branch - biceps brachii, Coracobrachialis, Brachialis Lateral Cutaneous - (no motor) - skin overlying lateral aspect of forearm
53
Ulnar Nerve
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
Axillary Nerve
C5-C6 Branches of Posterior Cord Muscle Branch - Deltoid & Teres Minor Superior Lateral Cutaneous - (no motor) skin superior lateral aspect of arm
55
Radial Nerve
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
Median Nerve
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
Triangular Space
Teres Minor, Teres Major, Long Head Triceps Brachii Circumflex Scapular Artery
58
Triceps Hiatus
Teres Major, Long Head Triceps, Humerus Profunda Brachii Artery, Radial Nerve
59
Anterior Compartment of Arm
Flexes Shoulder & Elbow Musculocutaneous Nerve Brachial Artery Biceps, Coracobrachialis, Brachialis
60
Posterior Compartment of Arm (Content, Action, Nerve)
Extension Shoulder & Elbow Radial Nerve Profunda Brachii Artery Triceps, Anconeus
61
What creates the Anterior and Posterior Compartments of Arm?
Lateral & Medial Intermuscular Septum

Clinical Anatomy (18 decks)

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