MEDICAL PHYSIOLOGY

Detailed explanation-1: -Neurotransmitters are chemical messengers that your body can’t function without. Their job is to carry chemical signals (“messages”) from one neuron (nerve cell) to the next target cell. The next target cell can be another nerve cell, a muscle cell or a gland.

Detailed explanation-2: -Billions of neurotransmitter molecules constantly work to keep our brains functioning, managing everything from breathing to heartbeat to learning and concentration levels. They can also affect various psychological functions such as fear, mood, pleasure, and joy.

Detailed explanation-3: -Answer and Explanation: The best answer is C. They move in a random manner. Neurotransmitters are chemical messenger substances.

Detailed explanation-4: -To date, scientists have identified more than 60 distinct types of neurotransmitters in the human brain, and most experts say there are more left to discover. These powerful neurochemicals are at the center of neurotransmission, and, as such, are critical to human cognition and behavior.