Final answer:
The brainstem, specifically the medulla oblongata and the pons within it, controls the involuntary, rhythmic activities of breathing.
Step-by-step explanation:
The involuntary, rhythmic activities that control breathing are located in the brainstem of the CNS. The brainstem includes the midbrain, medulla oblongata, and the pons. It controls essential bodily functions, such as alertness, arousal, heart rate, and importantly for the question, breathing. The respiratory centers in the medulla and pons send nerve impulses to the diaphragm and intercostal muscles, regulating the breathing process based on the body's needs, like the blood's carbon dioxide levels and pH balance. This ensures breathing remains automatic without conscious thought, responding to changes such as increased carbon dioxide levels during exercise
The involuntary, rhythmic activities that control breathing are located in the brainstem of the CNS. The brainstem, specifically the medulla and pons, contains the respiratory centers that automatically regulate the rate of breathing based on the body's needs, such as blood acidity levels. These respiratory centers send nerve impulses to the diaphragm and intercostal muscles, coordinating the contractions and relaxations necessary for breathing.