Extend the topic and allow your students to explore the muscular system by having them create muscle models of their own. Students will have the autonomy to create their models using whatever supplies they choose (or the teacher provides), as long as they follow the rubric for the project. Students must include the six key muscular vocabulary terms, as well as a key indicating each of the terms.
This can be used as a summative assignment, in class project, extension activity, etc.!