Exploring the Heart

By Lori Altenbaumer, 7th/8th Math & Science

Our 7th grade students at St. James Day School recently took their learning to the next level with a hands-on sheep heart dissection - an experience they soon won’t forget!

Before stepping into the lab, students built a strong foundation by exploring the structures and functions of the circulatory system. We spent time tracing the pathway of blood through the body - moving from the heart to the lungs, back to the heart, out to the body, and continuing this vital cycle. To reinforce their understanding, students drew, colored, and labeled a detailed diagram of a mammalian four-chambered heart, which served as a helpful reference throughout the dissection.

During the lab, students were able to connect their prior knowledge to real-life application. They carefully examined the sheep hearts and successfully identified key structures, including the chambers of the heart, major arteries and veins, and important valves that regulate blood flow. It was exciting to see their diagrams come to life as they located these features firsthand.

This experience offered our students a meaningful glimpse into the more in-depth study of body systems they will encounter in high school and possibly beyond. More importantly, it sparked curiosity, encouraged critical thinking, and allowed them to engage in authentic scientific exploration.

Our 7th graders approached this lab with focus, respect, and enthusiasm. They did a phenomenal job, and I am proud of the effort and maturity they demonstrated throughout the experience!