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.
The central nervous system relies on pathways and higher order functions to transfer information to various parts of the brain, giving the body sensory and motor ability. There is a constant interaction going on between the brain, spinal cord, and the peripheral nervous system (PNS).Pathways are either ascending (sensory) or descending (motor) and contain tracts and nuclei, where signals from one neuron to another creates a synapse.hey are in the skin, joints, muscles and viscera (Noback 155). Sensory systems transmit information regarding intensity. Receptors of pain are called nociceptors. Each of the pathways involve a chain of neurons named accordingly, a first order neuron is a neuron that delivers directly to the CNS or its cell body.