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The Nervous System Video Lecture - Class 5
FAQs on The Nervous System Video Lecture - Class 5
| 1. What is the nervous system? |  |
Ans. The nervous system is a complex network of nerves and cells that transmit signals between different parts of the body. It is responsible for coordinating and controlling all bodily functions, including movement, thoughts, emotions, and sensing the environment.
| 2. What are the main components of the nervous system? | |
Ans. The nervous system is divided into two main components: the central nervous system (CNS) and the peripheral nervous system (PNS). The CNS consists of the brain and spinal cord, while the PNS includes all the nerves outside of the CNS that connect it to the rest of the body.
| 3. How does the nervous system work? | |
Ans. The nervous system works by transmitting electrical signals called nerve impulses. These impulses travel along neurons, which are specialized cells that make up the nervous system. When a nerve impulse reaches the end of a neuron, it releases chemicals called neurotransmitters that help the impulse jump to the next neuron, allowing the signal to travel throughout the body.
| 4. What are the functions of the nervous system? | |
Ans. The nervous system has several important functions. It controls and coordinates voluntary movements, such as walking or talking, as well as involuntary actions, like heartbeat and breathing. It also receives and processes sensory information from the environment, allowing us to see, hear, taste, smell, and touch. Additionally, the nervous system is involved in higher cognitive functions, such as learning, memory, and emotion.
| 5. How can the nervous system be affected by diseases or injuries? | |
Ans. The nervous system can be affected by various diseases and injuries. Neurological disorders like Alzheimer's disease, Parkinson's disease, and multiple sclerosis can disrupt the normal functioning of the nervous system. Injuries, such as spinal cord injuries or traumatic brain injuries, can also cause significant damage to the nervous system. These conditions can result in a wide range of symptoms, including paralysis, loss of sensation, cognitive impairments, and emotional disturbances. Treatment options vary depending on the specific condition and may include medication, therapy, or surgery.
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Dec 27, 2024 Last updated |
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