I made this coloring sheet to help me teach the excretory system. The students will color 4 different sections. The first section shows the main type of epithelium that makes up the bladder. The second portion shows the parts of the excretory system. The third portion shows a common issue with a part of the system. The fourth portion has the students choose which two systems are interacting in the pictures.
human body system
anatomy and physiology coloring sheet