This classical oil painting depicts a formal anatomy lesson taking place in a dimly lit, somber environment. The central focus is a group of seven men, all dressed in dark, period-appropriate 17th-century attire with crisp white ruffs. These men lean in with expressions of rapt attention and curiosity, gathered around a table where a lecture is being performed. The figure on the far right, dressed in a wide-brimmed hat, appears to be the surgeon, gesturing with his hand as he explains the structures revealed during the dissection.
The setting is characterized by a high-contrast chiaroscuro technique, where deep, murky shadows dominate the background, pulling the viewer's eyes toward the brightly illuminated subject matter. The pale, horizontal figure of the cadaver lies at the forefront, serving as the focal point of the scientific demonstration. The stark contrast between the bright flesh of the cadaver and the dark, monochromatic clothing of the onlookers creates a dramatic and academic atmosphere.
The painting style is representative of Dutch Golden Age realism, emphasizing precise detail and psychological depth through the varied facial expressions of the witnesses. The composition is structured to lead the eye from the surgeon's hands and his lecture across the attentive faces of the onlookers to the anatomical subject at the center, capturing a singular moment of intellectual inquiry.