Which part of the nervous system includes the cardio accelerator center?

Which part of the nervous system includes the cardio accelerator center?

• A. Parasympathetic nervous system
• B. Sympathetic nervous system
• C. Somatic nervous system
• D. Autonomic nervous system

Answer: (B)

The cardio accelerator center is a critical component of the nervous system that plays a role in regulating heart rate and contractility. It is part of the sympathetic nervous system, which is responsible for initiating the "fight or flight" response in the body. When activated, the cardio accelerator center releases neurotransmitters like norepinephrine, leading to an increase in heart rate and improved myocardial contractility, which is vital during times of stress or increased physical activity. In contrast, the parasympathetic nervous system works to slow the heart rate and promote a state of rest and digestion, while the somatic nervous system primarily controls voluntary movements and does not directly influence heart rate. The autonomic nervous system encompasses both the sympathetic and parasympathetic systems, but the specific function of accelerating the heart rate is attributed to the sympathetic nervous system through the cardio accelerator center. Thus, identifying this center as part of the sympathetic nervous system highlights its role in enhancing heart function during increased demand scenarios.

The cardio accelerator center is a critical component of the nervous system that plays a role in regulating heart rate and contractility. It is part of the sympathetic nervous system, which is responsible for initiating the "fight or flight" response in the body. When activated, the cardio accelerator center releases neurotransmitters like norepinephrine, leading to an increase in heart rate and improved myocardial contractility, which is vital during times of stress or increased physical activity.

In contrast, the parasympathetic nervous system works to slow the heart rate and promote a state of rest and digestion, while the somatic nervous system primarily controls voluntary movements and does not directly influence heart rate. The autonomic nervous system encompasses both the sympathetic and parasympathetic systems, but the specific function of accelerating the heart rate is attributed to the sympathetic nervous system through the cardio accelerator center. Thus, identifying this center as part of the sympathetic nervous system highlights its role in enhancing heart function during increased demand scenarios.