Axillary nerve Flashcards Preview

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Flashcards in Axillary nerve Deck (12):
1

What is the sensory innervation of the Axillary nerve?

The regimental badge area

2

What is the motor innervation of the Axillary nerve?

Teres minor
Deltoid
Abductors of the arm at the shoulder

3

What is the spinal root of the Axillary nerve?

C5 and C6

4

What is the Quadrangular space?

Space for nerves and vessels to pass from the anterior arm to posterior arm

5

What is the superior border of the Quadrangular space?

Subscapularis muscles
Teres minor

6

What is the inferior border of the Quadrangular space?

Teres major

7

What is the lateral border of the Quadrangular space?

Surgical neck of the Humerus

8

What is the medial border of the Quadrangular space?

Long head of the Triceps Brachii

9

What nerve does a branch of the Axillary nerve give rise to?

Lateral cutaneous nerve of the arm

10

How does injury to the Axillary nerve commonly occur?

Anterior dislocation of the glenohumeral joint
Fracture of the surgical neck of the humerus

11

How would an Axillary nerve injury present itself?

Patient would be unable to Abduct the arm

12

Why is a patient with Axillary nerve damage unable to Abduct their arm?

The teres minor and deltoid are paralysed