UPSC > Science & Technology for UPSC CSE > Fun Video: The Nervous System
Fun Video: The Nervous System Video Lecture - Science & Technology for UPSC CSE
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FAQs on Fun Video: The Nervous System Video Lecture - Science & Technology for UPSC CSE
| 1. What is the function of the nervous system? |  |
Ans. The nervous system is responsible for transmitting signals between different parts of the body. It controls and coordinates various bodily functions, including movement, sensation, and the regulation of internal organs.
| 2. How does the nervous system work? | |
Ans. The nervous system consists of neurons, which are specialized cells that transmit electrical signals. When a stimulus is detected by sensory neurons, it is converted into an electrical signal and transmitted to the brain. The brain then processes the information and sends a response signal through motor neurons to the appropriate muscles or organs.
| 3. What are the main components of the nervous system? | |
Ans. The main components of the nervous system are the brain, spinal cord, and peripheral nerves. The brain is the control center and is responsible for processing and interpreting information. The spinal cord acts as a pathway for signals between the brain and the rest of the body. Peripheral nerves connect the central nervous system to the limbs, organs, and sensory receptors.
| 4. What are the two divisions of the nervous system? | |
Ans. The nervous system is divided into 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. The PNS further divides into the somatic nervous system (responsible for voluntary movements) and the autonomic nervous system (controls involuntary functions).
| 5. How can the nervous system be affected by diseases or injuries? | |
Ans. The nervous system can be affected by various diseases and injuries. Conditions such as Alzheimer's disease, Parkinson's disease, and multiple sclerosis can lead to the degeneration of nerve cells and impair the functioning of the nervous system. Injuries, such as spinal cord injuries or traumatic brain injuries, can cause loss of sensation, paralysis, or cognitive deficits, depending on the location and severity of the injury.
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165 videos|449 docs|327 tests
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Timeline
| 01:36 | Sensory Input, Integration & Motor Output |
| 02:16 | Organization of Central & Peripheral Systems |
| 03:54 | Glial Cells |
| 05:23 | Role, Anatomy & Function of Neuron Types |
| 06:20 | Structure & Function of Neuron |
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