Human Body Anatomy: Integrated Systems & Physiological Health

In the human body, health is maintained through the interconnectedness of organ systems, proper posture, and stable biochemical metabolism.

Organs of the Human Body

Science student looking through microscope in the lab

A List of Bad Bacteria

Published Aug,14 2017 | By Valerie Liles

Bacteria are the oldest and most abundant life form on Earth. These microscopic, single-celled organisms live in all environments -- including in and on the human body. A study published in May 2016 in the "Proceedings of the National Academy of Sciences of the U.S.A."

Based in Atlanta, Valerie Liles has been writing about landscape and garden design since 1980. As a registered respiratory therapist, she also has experience in family health, nutrition and pediatric and adult asthma managment. Liles holds a Bachelor of Arts in journalism from Colorado State University and a Master of Science in technical communication from the University of Colorado.