New ZicamÂ® Cold Remedy Nasal Spray is a brand new cold shortening nasal spray that also provides multi-symptom relief. The active ingredients in this new formula consist of a unique mix of plant-based homeopathic ingredients, delivered in our patented gel form. New ZicamÂ® Cold Remedy Nasal Spray does not contain zinc.
The size of the nervous system ranges from a few hundred cells in the simplest worms, to around 300 billion cells in African elephants. The central nervous system functions to send signals from one cell to others, or from one part of the body to others and to receive feedback. Malfunction of the nervous system can occur as a result of genetic defects, physical damage due to trauma or toxicity, infection or simply of ageing.
How do neurons transmit signals throughout the body? One part of this transmission process involves what is known as an action potential. An action potential is part of the process that occurs during the firing of a neuron. During the action potential, part of the neural membrane opens to allow positively charged ions inside the cell and negatively charged ions out. This process causes a rapid increase in the positive charge of the nerve fiber.