In "Stiff: The Curious Lives of Human Cadavers," Mary Roach describes Marilena's careful examination of a woman's exposed tissue. This meticulous process involves Marilena becoming familiar with the intricate layers that constitute the human cheek, including skin, fat, muscle, and fascia. Through this hands-on approach, she gains a deeper understanding of human anatomy.

Roach highlights the importance of tactile exploration in anatomy studies. As Marilena gingerly probes the tissue, she not only identifies various components but also appreciates the complexity of the human body. This detailed investigation emphasizes the fascinating connection between scientific inquiry and the human form, shedding light on the role of cadavers in advancing medical knowledge.