Grade 11 Exam > Grade 11 Videos > Psychology for Grade 11 > Nervous System- 1
Nervous System- 1 Video Lecture | Psychology for Grade 11
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FAQs on Nervous System- 1 Video Lecture - Psychology for Grade 11
| 1. What is the nervous system? |  |
The nervous system is a complex network of nerves and cells in the body that regulates and coordinates the body's activities. It is divided into two main parts: the central nervous system (CNS) and the peripheral nervous system (PNS).
| 2. How does the nervous system work? | |
The nervous system works by transmitting electrical signals, known as nerve impulses, between the brain, spinal cord, and the rest of the body. Sensory receptors detect stimuli from the environment, which are then converted into nerve impulses and transmitted to the brain for processing. The brain then sends signals back to the body to initiate appropriate responses.
| 3. What are the major components of the nervous system? | |
The major components of the nervous system include the brain, spinal cord, and nerves. The brain is responsible for processing and interpreting sensory information, controlling voluntary and involuntary actions, and regulating bodily functions. The spinal cord acts as a relay between the brain and the rest of the body, while nerves transmit signals throughout the body.
| 4. How does the nervous system control movement? | |
The nervous system controls movement through a coordinated effort between the brain, spinal cord, and muscles. The motor cortex in the brain sends signals to the spinal cord, which then relays the signals to the muscles. These signals trigger muscle contractions, allowing for voluntary movement. The cerebellum also plays a role in coordinating movement and maintaining balance.
| 5. What are the common disorders of the nervous system? | |
Common disorders of the nervous system include Alzheimer's disease, Parkinson's disease, multiple sclerosis, epilepsy, and stroke. These disorders can affect various aspects of the nervous system, such as memory, movement, coordination, and sensory perception. Treatment options vary depending on the specific disorder and may include medication, physical therapy, and lifestyle modifications.
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Nov 22, 2024 Last updated |
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