The anatomy of reptiles is characterized by several key features.

Reptiles, like all vertebrates, have a backbone or spinal column, which protects their dorsal nerve cord.

They also have two pairs of limbs (except for some snake species that have lost their limbs), which are adapted for different modes of movement.

The skin of reptiles is typically covered in scales, which help to protect them from predators and the environment.

One unique aspect of reptile anatomy is their ability to breathe through lungs, which are more efficient than the lungs of amphibians. Reptiles also have a three-chambered heart, which separates oxygenated and deoxygenated blood.

Overall, the anatomy of reptiles has evolved to help them survive and thrive in a wide range of environments.