What type of nerve innervates the pectoralis major muscle?
Understand the Problem
The question is asking about the type of nerve that provides innervation to the pectoralis major muscle, which is a key concept in anatomy and neurology.
Answer
Lateral and medial pectoral nerves.
The pectoralis major muscle is innervated by both the lateral pectoral nerve and the medial pectoral nerve.
Answer for screen readers
The pectoralis major muscle is innervated by both the lateral pectoral nerve and the medial pectoral nerve.
More Information
The lateral pectoral nerve primarily innervates the pectoralis major, while the medial pectoral nerve innervates both the pectoralis major and pectoralis minor. These nerves are part of the brachial plexus, arising from nerve roots C5 to T1.
Tips
Confusing the nerves that innervate only the pectoralis major with those that innervate both the major and minor muscles is a common mistake.
Sources
- Pectoralis major - Kenhub - kenhub.com
- Pectoralis major - Wikipedia - en.wikipedia.org
- Lateral pectoral nerve - ScienceDirect Topics - sciencedirect.com
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