text: Aldosterone-sensitive HSD2 neurons are located in the solitary nucleus within this structure, which has a pair of swellings known as olivary bodies.
full_question: Aldosterone-sensitive HSD2 neurons are located in the solitary nucleus within this structure, which has a pair of swellings known as olivary bodies. Adolf Wallenberg names a syndrome characterized by frequent, violent hiccups which results from lateral damage to this structure. This region is home to paired white matter structures which decussate, known as the pyramids. The central chemoreceptors of this structure detect (*) pH changes caused by altered O2 or CO2 concentration. The area postrema within this structure controls vomiting. This structure is situated between the pons and the spinal cord. For 10 points, name this part of the brain stem that controls involuntary functions like breathing and heart rate.
first_sentence: Aldosterone-sensitive HSD2 neurons are located in the solitary nucleus within this structure, which has a pair of swellings known as olivary bodies.
raw_answer: medulla oblongata [or word forms, such as medullary; prompt on brain stem until it is mentioned]