Here a human heart takes shape in the pages of medical illustrator Sayaka Isowa's sketchbook. She writes:
"Since childhood I had a passion for drawing and was inspired by the beauty of the human body and living species. I discovered biomedical art through my illustration classes and became fascinated by the collaboration of art and science."
There are more fascinating works in progress and sketches on Isowa's blog.
Photo courtesy Sayaka Isowa