The ability to visualize muscle actions go a long way in terms of understanding the macroanatomy and microanatomy of muscles. Herein, we present basic overview of key muscles and their related structures that enable our body to move at an intuitive level.

The thorax, or chest region of the body, is crucial for several essential functions. It houses and protects vital organs, including the heart and lungs, which are essential for breathing and blood circulation. The thorax's rib cage provides structural support and protects these organs from external trauma. Additionally, the thoracic cavity's expansion and contraction during breathing enable the exchange of oxygen and carbon dioxide, necessary for sustaining life. Overall, the thorax's importance lies in its role in safeguarding and facilitating vital physiological processes critical for human survival.

The digestive system plays a crucial role in the body by breaking down the food we eat, extracting essential nutrients, and eliminating waste products. It all begins with chewing and the action of enzymes in saliva in the mouth. The stomach continues the breakdown process using gastric juices, and then the small intestine further digests the food and absorbs nutrients. In the large intestine, water is reabsorbed, and waste is prepared for elimination. This intricate process ensures our bodies receive the necessary nutrients for energy and growth. Understanding how the digestive system works is vital for college students as it impacts overall health and wellbeing.