Introduction to Nervous System Flashcards
What do I need to know about the nervous system?
Aim: to understand the pathophysiology, presentation, key features and long-term implications of common pathologies of the nervous system. But its the body’s prime communication and co-ordination network.
The CNS is the spinal cord and brain; the PNS the cranial and spinal nerves, and sensory organs
Learning outcomes: By the end of this lesson you will be able to:
1. Describe the pathophysiological processes, signs and symptoms, aetiology,
epidemiology & risk factors for common neurological disorders.
2. Understand the investigations used for diagnosis, orthodox medical
treatments, complications and long-term impacts on health & wellbeing.
3. Understand how the pathophysiology of these disorders guides holistic &
herbal management.
What are neurons?
- Neurons are the basic functional units of the nervous system, and they
generate electrical signals called action potentials, which allow them to
quickly transmit information over long distances. Glia are also essential to
nervous system function, but they work mostly by supporting the neurons. - Based on their roles, the neurons found in the human nervous system can
be divided into three classes: - Sensory neurons get information about what’s going on inside and outside
of the body and bring that information into the CNS so it can be processed. - Motor neurons get information from other neurons and convey commands
to your muscles, organs and glands. - Interneurons, which are found only in the CNS, connect one neuron to
another.