What was transplanted into the dog in Bulgakov's work "Heart of a Dog"?

What was transplanted into the dog in Bulgakov's work Heart of a Dog? - briefly

In Mikhail Bulgakov's satirical novella "Heart of a Dog," the protagonist, Professor Philipp Philippovich Preobrazhensky, performs a groundbreaking surgical procedure. He transplants the pituitary gland and testes of a recently deceased man named Klim Chugunkin into a stray dog named Sharik.

What was transplanted into the dog in Bulgakov's work Heart of a Dog? - in detail

In Mikhail Bulgakov's satirical novel "Heart of a Dog," the central plot revolves around an extraordinary surgical procedure performed by Professor Philipp Philippovich Preobrazhensky. The professor, a renowned surgeon, decides to transplant the pituitary gland and testes of a recently deceased man named Klimenty Ivanovich Khrushchyov into a stray dog named Sharik. This experimental procedure is driven by the professor's ambition to push the boundaries of medical science and his desire to create a human-like being from an animal.

The choice of organs for transplantation is crucial to the narrative. The pituitary gland, a small endocrine gland at the base of the brain, is responsible for regulating various physiological processes, including growth and metabolism. By transplanting Khrushchyov's pituitary gland into Sharik, Preobrazhensky aims to induce significant physiological changes in the dog, potentially altering its behavior and cognitive abilities. The testes, on the other hand, are essential for the development of male secondary sexual characteristics and the production of testosterone. Their transplantation is intended to further humanize Sharik, both physically and behaviorally.

The procedure itself is meticulously planned and executed, reflecting Preobrazhensky's surgical expertise. The novel delves into the intricate details of the operation, highlighting the professor's skill and the complexity of the task. The success of the surgery leads to dramatic transformations in Sharik. The dog begins to exhibit human-like traits, including the ability to speak, read, and even dress in human clothing. These changes are not merely physical but also psychological, as Sharik adopts human mannerisms and behaviors.

The transplantation of the pituitary gland and testes into Sharik serves as a catalyst for exploring themes of identity, humanity, and the ethical implications of scientific advancement. Bulgakov uses this narrative device to critique the societal and political climate of his time, particularly the rapid and often reckless pursuit of progress. The novel raises questions about the boundaries of human experimentation and the potential consequences of meddling with nature.

In summary, the organs transplanted into the dog in Bulgakov's "Heart of a Dog" are the pituitary gland and testes of a deceased man. This surgical experiment is a pivotal element in the story, driving the plot and facilitating the exploration of profound themes. The transformations that Sharik undergoes as a result of the procedure underscore the novel's commentary on the dangers of unchecked scientific ambition and the blurred lines between humanity and animality.