| Term 
 
        | origination of brachial plexus |  | Definition 
 
        | from spinal nerves C5 - T1 |  | 
        |  | 
        
        | Term 
 
        | 5 major branches of the brachial plexus |  | Definition 
 
        | 1) musculocutaneous   4) axillary 2) median             5) radial nerves
 3) ulnar
 |  | 
        |  | 
        
        | Term 
 
        | sensory function of musculocutaneous |  | Definition 
 
        | supplies skin on lateral surface of forearm |  | 
        |  | 
        
        | Term 
 
        | sensory function of ulnar nerve |  | Definition 
 
        | supplies skin on little finger, medial half of the ring finger, and medial third of the hand |  | 
        |  | 
        
        | Term 
 
        | sensory function of axillary nerve |  | Definition 
 
        | supplies skin on lateral shoulder |  | 
        |  | 
        
        | Term 
 
        | sensory function of radial nerve |  | Definition 
 
        | supplies skin on posterior surface of arm and forearm and skin on posterolateral surface of hand |  | 
        |  | 
        
        | Term 
 
        | origination of lumbosacral plexus |  | Definition 
 | 
        |  | 
        
        | Term 
 
        | 5 major branches of lumbosacral plexus |  | Definition 
 
        | 1) obturator      4) tibial 2) femoral        5) fibular
 3) sciatic
 |  | 
        |  | 
        
        | Term 
 
        | sensory function of obturator |  | Definition 
 
        | supplies skin on medial thigh (groin) |  | 
        |  | 
        
        | Term 
 
        | sensory function of femoral nerve |  | Definition 
 
        | supplies skin on anterior thigh and medial leg |  | 
        |  | 
        
        | Term 
 
        | sensory function of sciatic nerve |  | Definition 
 | 
        |  | 
        
        | Term 
 
        | sensory function of tibial nerve |  | Definition 
 
        | branches of the tibial nerve supply the skin on the posterior leg, the lateral surface of the foot, and the sole of the foot |  | 
        |  | 
        
        | Term 
 
        | sciatic nerve is formed by |  | Definition 
 
        | the tibial nerve and common fibular nerve |  | 
        |  | 
        
        | Term 
 
        | the common fibular nerve divides to form |  | Definition 
 
        | the superficial fibular nerve and deep fibular nerve |  | 
        |  | 
        
        | Term 
 
        | sensory function of common fibular nerve |  | Definition 
 
        | supplies skin on lateral portion of knee, skin on anterolateral leg, and dorsum of foot |  | 
        |  |