Chapter 7

Table 4. Number of Muscular Variations in Common Between the Legs Studied

Table 5. Occurrence of Individual Variations in Nerves

two fureal nerves

S9 with three branches

prefixed

sciatic nerve with six roots

obturator nerve from S2 and S3 only

femoral nerve mainly from S2-S4

anterior division innervates extensor iliotibialis lateralis

dorsal division fused with anterior division

dorsal division fused with middle division

two branches to iliacus

middle division anastomoses with anterior division

anterodorsal division does not go through femoral notch

branch of anterior division perforates iliacus

cutaneous branch perforates extensor iliotibialis lateralis

branch of middle division perforates vastus medialis

branch to vasti innervates extensor iliotibialis lateralis

anterior branch of anterior division cutaneous

twig to pars caudifemoralis independent

branch to flexor cruris lateralis does not perforate caudofemoralis

paraperoneal nerve enters peroneal sheath

cutaneous peroneal branch perforates gastrocnemius pars externa

cutaneous peroneal branch absent

distal cutaneous tibial branch absent

twig to tail present

nonmuscular peroneal twig deep to vastus lateralis pars postica

branch to flexor cruris medialis from posterior tibial division

extra twigs join cutaneous tibial branches

branch to flexor cruris medialis an independent division

branch to flexor cruris medialis perforates flexor ischiofemoralis

two twigs to flexor ischiofemoralis

independent extra branch innervates extensor iliofibularis

branch to femorocruralis innervates gastrocnemius pars media

superficial and deep peroneal nerves do not join

independent extra branch innervates flexor perforatus digiti IV

anastomosis involving posterior division

branch to gastrocnemius pars externa an independent division

branch to gastrocnemius pars media innervates femorocruralis

extra branch innervates flexor perforatus digiti III

branch to gastrocnemius pars interna perforates plantaris

branch to gastrocnemius pars interna innervates plantaris


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