fourth lumbar nerve L4

fourth lum·bar nerve [L4]

[TA]
the ventral branch of the nerve is forked to enter into the formation of both lumbar and sacral plexuses.

fourth lum·bar nerve [L4]

(fōrth lŭm'bahr nĕrv) [TA]
The ventral branch of the nerve is forked to enter into the formation of both lumbar and sacral plexuses.