This drawing by Jesse McKinnis shows a young Jesse and his grandfather. It appears on the title page for the chapter on Hips in the third edition of the textbook "Fundamentals of Musculoskeletal Imaging." The book is authored by Jesse's mother, Lynn McKinnis, a physical therapist and college professor.

Only a junior at Butler High School, Jesse McKinnis is already a published illustrator.

But, he said, these aren't the kind of drawings he's likely to show off to his friends.

The Summit Township teenager has 18 drawings of human anatomy in the newly published third edition of "Fundamentals of Musculoskeletal Imaging." It's a college textbook used in classes for physical therapists.

The textbook is authored by his mother, Lynn McKinnis, a physical therapist with Concordia Visiting Nurses and a professor affiliated with St. Francis University and the University of Montana. She first published the book in 1997 and with each edition has tried to improve it.

With this edition, Lynn said, she wanted to use images that would show people engaged in functional activities.

"I wanted to convey to the students the importance of remembering that no matter how advanced imaging becomes, it still begins and ends with the patient," she said.

She asked her son to draw an example and sent it to the publisher in Philadelphia. The publishing company asked Jesse to do drawings for the title page of each chapter of the book.

Using photographs of family members like grandma, grandpa and sister, Jesse spent six months working on the detailed pencil drawings.

"I fit it in when I could," Jesse said. "For quite some time, I had no free time."

He said he enjoys art and takes art electives while in school. He has considered doing medical illustration, but he admits it would be hard to make a living at art and is considering a career in medicine.He said consistency and detail in the artwork presented a challenge to him."It tested my art stamina," he said. "This helped hone my detail skills."Jesse said he learned from this experience because it was his first time doing work for someone, and it involved the revision process.He included some of the drawings in his portfolio for his college applications, but has more exciting pieces to show to his friends. That doesn't mean, however, when he is visiting colleges he won't sneak into the bookstore to see his drawings, he said.

Jesse McKinnis, a junior at Butler High School, shows some of the original artwork in his portfolio. The Summit Township teenager has 18 drawings of human anatomy in the newly published third edition of "Fundamentals of Musculoskeletal Imaging," a college textbook for physical therapists.