Brachial plexus branches, upper limb compartments, and classic nerve injury patterns (e.g. wrist drop, claw hand), one fact per card.
39 cards · basic cards · AI-written, checked twice. Edit anything.
- From which spinal cord levels do the roots of the brachial plexus arise?
- C5 to T1
- Which spinal roots contribute to the long thoracic nerve?
- C5, C6, and C7
- Which muscle does the long thoracic nerve innervate?
- Serratus anterior
- Injury to the long thoracic nerve produces what classic sign?
- Winged scapula
- Which single root gives rise to the dorsal scapular nerve?
- C5
- Which muscles does the dorsal scapular nerve innervate?
- Rhomboids and levator scapulae
- The suprascapular nerve branches off which part of the brachial plexus?
- The superior trunk
- Which muscles does the suprascapular nerve innervate?
- Supraspinatus and infraspinatus
- Which nerve roots combine to form the superior trunk of the brachial plexus?
- C5 and C6
- Which nerve root alone forms the middle trunk of the brachial plexus?
- C7
- Which nerve roots combine to form the inferior trunk of the brachial plexus?
- C8 and T1
- The lateral cord of the brachial plexus forms from which divisions?
- The anterior divisions of the superior and middle trunks
- The posterior cord of the brachial plexus forms from which divisions?
- The posterior divisions of all three trunks
- The medial cord of the brachial plexus forms from which division?
- The anterior division of the inferior trunk
- The musculocutaneous nerve is a terminal branch of which cord?
- The lateral cord