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Questions and Answers
Which nerve is the only one that passes through the carpal tunnel?
Which nerve is the only one that passes through the carpal tunnel?
- Median nerve (correct)
- Radial nerve
- Axillary nerve
- Ulnar nerve
At what point does the median nerve enter the arm from the axilla?
At what point does the median nerve enter the arm from the axilla?
- Inferior margin of the teres major muscle (correct)
- Superior margin of the teres major muscle
- Medial to the brachial artery
- Lateral to the brachial artery
Where does the median nerve originate from?
Where does the median nerve originate from?
- C8 and T1
- Ventral roots of C6-C7
- Teres major muscle
- Lateral and medial cords of the brachial plexus (correct)
Where does the median nerve pass medial to the brachial artery?
Where does the median nerve pass medial to the brachial artery?
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Which muscle receives a branch from the median nerve immediately above the elbow joint?
Which muscle receives a branch from the median nerve immediately above the elbow joint?
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Study Notes
Carpal Tunnel and Median Nerve
- The median nerve is the only nerve that passes through the carpal tunnel.
Origin and Path of Median Nerve
- The median nerve originates from the brachial plexus.
- The median nerve enters the arm from the axilla (armpit).
Relationship with Brachial Artery
- The median nerve passes medial to the brachial artery.
Muscle Innervation
- The pronator teres muscle receives a branch from the median nerve immediately above the elbow joint.
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