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Questions and Answers
What is the root value of the axillary nerve?
What is the root value of the axillary nerve?
- C7, C8
- C5, T1
- C5, C6 (correct)
- C3, C4
The axillary nerve is a branch of which part of the brachial plexus?
The axillary nerve is a branch of which part of the brachial plexus?
- Anterior cord
- Posterior cord (correct)
- Lateral cord
- Medial cord
Which muscles does the axillary nerve innervate?
Which muscles does the axillary nerve innervate?
- Deltoid and teres minor (correct)
- Supraspinatus and infraspinatus
- Deltoid and teres major
- Biceps brachii and brachialis
Through which space does the axillary nerve pass?
Through which space does the axillary nerve pass?
The axillary nerve is associated with which part of the humerus?
The axillary nerve is associated with which part of the humerus?
Flashcards
Axillary Nerve
Axillary Nerve
A nerve arising from the posterior cord of the brachial plexus that supplies deltoid and teres minor muscles.
Root value of Axillary Nerve
Root value of Axillary Nerve
The spinal nerve roots contributing to the axillary nerve are C5 and C6.
Function of Axillary Nerve
Function of Axillary Nerve
Supplies motor function to the deltoid and teres minor muscles, aiding in arm movement.
Pathway of Axillary Nerve
Pathway of Axillary Nerve
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Relationship to Humerus
Relationship to Humerus
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Study Notes
Axillary Nerve
- Root value: C5, C6
- Origin: branch of the posterior cord of the brachial plexus
- Supplies: deltoid and teres minor muscles
- Relationships:
- Passes posteriorly through the quadrangular space, accompanied by the posterior circumflex humeral vessels
- Winds around the surgical neck of the humerus
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