Final answer:
The statement is true, linking the cardioacceleratory center with sympathetic stimulation and the cardioinhibitory center with parasympathetic stimulation, which together control heart rate under the brainstem's regulation. These centers are part of the medulla oblongata, which is key in cardiovascular system homeostasis.
Step-by-step explanation:
The statement that the cardioacceleratory center activates sympathetic neurons and the cardioinhibitory center controls heart rate through parasympathetic stimulation is accurate, reflecting the brainstem's role in heart rate regulation. The cardiac centers located in the medulla oblongata consist of the cardioaccelerator and cardioinhibitory areas. These centers are responsible for regulating the heart's activity. The cardioaccelerator regions stimulate the heart via the sympathetic stimulation of the cardiac accelerator nerves, increasing heart rate and stroke volume. Conversely, the cardioinhibitory centers reduce heart activity through parasympathetic stimulation via the vagus nerve, which decreases heart rate and stroke volume.
During normal conditions, these centers provide a baseline level of stimulation known as autonomic tone, which ensures the heart's functionality aligns with the body's needs. This intricate system plays a crucial role in maintaining cardiovascular homeostasis through actions such as adjusting heart rate in response to stress or changes in blood pressure.