The correct answer is 4. This describes the sensory and motor distribution of the seventh cervical root. The seventh cervical root refers to the nerve root exiting the spinal cord at the level of the seventh cervical vertebra, which is a significant contributor to the brachial plexus.
Create a Free MyAccess Profile
AccessMedicine Network is the place to keep up on new releases for the Access products, get short form didactic content, read up on practice impacting highlights, and watch video featuring authors of your favorite books in medicine. Create a MyAccess profile and follow our contributors to stay informed via email updates.