EVERYDAY SCIENCE

Detailed explanation-1: -The autonomic nervous system is a component of the peripheral nervous system that regulates involuntary physiologic processes including heart rate, blood pressure, respiration, digestion, and sexual arousal. It contains three anatomically distinct divisions: sympathetic, parasympathetic, and enteric.

Detailed explanation-2: -Your breathing usually does not require any thought, because it is controlled by the autonomic nervous system, also called the involuntary nervous system. The parasympathetic system slows your breathing rate.

Detailed explanation-3: -So, the correct answer is ‘Hypothalamus’.

Detailed explanation-4: -The pons and the medulla, along with the midbrain, are often called the brainstem. The brainstem takes in, sends out, and coordinates the brain’s messages. It also controls many of the body’s automatic functions, like breathing, heart rate, blood pressure, swallowing, digestion, and blinking.

Detailed explanation-5: -Answer and Explanation: The organs that are not controlled by the autonomic nervous system are the skeletal muscles. Unlike the organs of the autonomic nervous system, such as the heart, kidneys, and liver, the skeletal muscles are under conscious control.