- Match each statement with the appropriate nerve.
A. Axillary    B.femoral      C. fibular   D. obturator      E. radial     F.phrenic     G. ulnar
           ______ Forms from the cervical plexus.
           ______ Damage to this nerve would prevent extension at theknee.
           ______ Stimulation of this nerve would trigger adduction at thehip.
           ______ Damage to this nerve might weaken flexion at the wrist.
- Match each phrase with the appropriate structure associatedwith the spinal cord.
A. ventralroot     B. ventralhorn     C. ventralramus     D. dorsalroot     E. dorsal horn  F.dorsal ramus
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______ Origin of somatic motorneurons.
______ Contains only sensoryfibers.
______ Carries only fibers connectingto the central region of the back.
- What is the reason for the two enlargements in the spinalcord?
- Describe the distal (inferior) end of the spinal cord and thecontents of the vertebral canal below L2.
- Explain why the crossed extension reflex must accompany awithdrawal reflex of the leg.
