How does Kathy Reichs use imagery in Deadly Decisions?

Examples of Imagery:

"In the final photos the flesh lay in rows, like meat arranged in a butcher's case. I spotted pieces of skull, a fragment of tibia, a femoral head, and a portion of scalp with a complete right ear."

"As I stared at the wan little face, I ached inside. What could have prompted an attack on someone so fragile? Did a stranger force her at knifepoint, then strangle and leave her to the dogs? When did she realize she was going to die? Did she scream in terror, knowing no one would hear her cries?"