👉 The Rhombencephalon is a key structure in the human brain that plays a crucial role in regulating body temperature and pain perception. It consists of two main structures, the hypothalamus and the pituitary gland. 1. Hypothalamus: The hypothalamus is a large, interconnected network of cells located at the base of the brain. It's responsible for producing hormones that regulate various functions within the body, including temperature regulation, pain perception, and mood. This region is