The second lesson about the ribcage and its capabilities. This explanation of the difference between the torso and the ribcage is part of the online course "Introduction to the Body" and provides a detailed guide to studying the ribcage, as well as clarifying the distinction between the ribcage and the torso. The lesson gives you a hands-on understanding that the ribcage is a part of the torso in the chest area and includes all its anatomical components, while the torso encompasses the entire trunk, including the ribcage, abdomen, back, and hips.