"2 nerves from 1 root: ilioinguinal (L1), iliohypogastric (L1)"
"2 nerves from 2 roots: genitofemoral (L1/L2), lateral femoral cutaneous (L2/L3)"
"2 nerves from 3 roots: obturator (L2/L3/L4), femoral (L2/L3/L4)"
Expected headings
"Mnemonic"