Paraplegic.
A tetrapod is a vertebrate animal with four limbs. "Tetra" means "four" and "pod" means "foot". Amphibians, reptiles, birds and mammals are all tetrapods; even snakes and other limbless reptiles and amphibians are tetrapods because they descended from animals which had four limbs. Whales and other cetaceans are also tetrapods because they are mammals have two front limbs and the two hind limbs are vestiges.
quadruped.
Yes, they have four legs (so they have four 'limbs').
The person has pulses that can be felt in all four limbs, they can move all four limbs, and they can feel all four limbs.
Quadrupedal. And it means walking on four legs whether you're a dinosaur, a dog, or a gecko. Quadrupedal is the Latin... the Greek equivalent is Tetrapodal. Both mean four-footed, and both are used to describe animals that move on four limbs.
The only mammal species with less than four effective limbs are the sea mammals, like the orca, whale, sea lion, walrus etc. In some of them ther are still clear remnants of what once were hind legs; the orca and whale just have one tiny piece of bone left, so they can be regarded as really having less than four limbs. There are no land mammals with fewer than four limbs.
Paralysis of four extremities is called quadriplegia or tetraplegia. Quadriplegic or tetraplegic is the correct term for anyone who has paralysis of all four limbs. Quadriparesis is weakness in all four limbs.
Example of vertebrates (having a spinal column) could be humans, whose fore limbs are arms, as we stand upright. Then there are animals like the horse, whose fore limbs (indeed all four limbs) are actually legs.
Rats have four legs.
The name of a vertebrate with four limbs is a tetrapod (tetra meaning four and pod meaning foot).
Four.
Four.