Quadri/plegia refers to paralysis of all four limbs and is synonymous with the term tetra/plegia, which also indicates four-limb paralysis. Other options like mono/plegia refer to single limb paralysis, while cephal/algia and psycho/genic describe headache and psychological origins respectively. Therefore, the answer is tetra/plegia. ;
The medical term synonymous with quadri/plegia, which means paralysis of all four limbs, is tetra/plegia. The other options do not refer to four-limb paralysis, with mono/plegia indicating single limb paralysis and cephal/algia indicating headache. Therefore, the correct answer is tetra/plegia.
;