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Anatomy > Axilla > Flashcards

Axilla Flashcards

1
Q

Serratus Anterior

A

proximal - Ribs 1-8 (lateral portions)

distal - medial border of scapula

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2
Q

Subscapularis

A

proximal - Subscapular fossa

distal - lesser tubercle of humerus

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3
Q

Coracobrachialis

A

proximal - Coracoid process of scapula

distal - medial humeral shaft

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4
Q

Biceps brachii

A

Proximal for long head: suparglenoid tubercle of scapula

Proximal for Short head: Coracoid oricess of scapula

Distal: Radial tuberosity and anterbrachial fascia

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5
Q

Brachialis

A

proximal: anterior humerus
distal: ulnar tuberosity

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6
Q

Actions of serratus anterior

A

Protracts scapula and rotates glenoid fossa upwards

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7
Q

Actions of Subscapularis

A

Medially rotates and adducts arm

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8
Q

Actions of Coracobrachialis

A

Flexes and adducts arm

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9
Q

Actions of Biceps brachii

A

Flexes arm

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10
Q

Actions of Brachialis

A

Flexes forearm

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11
Q

Innervations of Serratus Anterior

A

Long thoracic nerve

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12
Q

Innervations of Subscapularis

A

Upper and lower subscapular nerve

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13
Q

Innervations of Coracobrachialis

A

Musculocutaneous nerve

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14
Q

Innervations of Biceps brachii

A

Musculocutaneous nerve

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15
Q

Innervations of Brachialis

A

Musculocutaneous nerve

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16
Q

What are the chords of the Brachial Plexus

A
  1. Lateral Cord (C1 - C7)
  2. Medial Cord (C8 - T1)
  3. Posterior Cord (C5 - T1)
    - Thoracacodorsal nerve
    - Upper subscapular
    - Lower subscapular
17
Q

What are the terminal branches of the Brachial Plexus?

A
  • *M**usculcutaneous (C5-C7)
  • *A**xillary nerve (C5, C6)
  • *R**adial nerve (C5-T1)
  • *M**edian nerve (C6-T1)
  • *U**lnar nerve (C8,T1)
18
Q
A
19
Q

What never travels superficially on the Serratous Anterior from C5-C7?

A

Long thoracic nerve

20
Q

What is in the 3rd part of the axillary artery?

A

1. Anterior humeral circumflex artery

2. Posterior humeral circumflex artery

3. Subscapular artery

  • Thoracodorsal and circumflex scapular arteries

Anatomy (8 decks)

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