What kind of nervous system activity takes place when you sense it is a cold day?

Somatic nervous system: The somatic nervous system is responsible for voluntary movements and sensation. When you sense it is a cold day, the somatic nervous system sends signals from the skin to the brain, which interprets the information as cold.

Autonomic nervous system: The autonomic nervous system is responsible for involuntary functions, such as heart rate, breathing, and digestion. When you sense it is a cold day, the autonomic nervous system activates the sympathetic nervous system, which causes the body to release hormones such as adrenaline and cortisol. These hormones increase the heart rate, breathing, and blood pressure, and divert blood flow from the skin to the core of the body.

Central nervous system: The central nervous system is made up of the brain and spinal cord. The brain is responsible for processing information from the somatic and autonomic nervous systems, and generating appropriate responses. When you sense it is a cold day, the brain sends signals to the muscles to cause shivering, and to the sweat glands to cause sweating.