NEET > Biology Class 11 > Neural Control & Coordination In One Shot (NCERT) - 2
Neural Control & Coordination In One Shot (NCERT) - 2 Video Lecture - Biology Class 11 - NEET
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FAQs on Neural Control & Coordination In One Shot (NCERT) - 2 Video Lecture - Biology Class 11 - NEET
| 1. What is neural control and coordination? |  |
Ans. Neural control and coordination refer to the regulation and integration of various activities in the body by the nervous system. It involves the transmission of electrical signals, called nerve impulses, through neurons to different parts of the body for controlling and coordinating their functions.
| 2. How does the nervous system coordinate and control body activities? | |
Ans. The nervous system coordinates and controls body activities through a complex network of neurons. When a stimulus is detected by sensory neurons, it generates a nerve impulse that is transmitted to the central nervous system (CNS). The CNS processes this information and responds by generating appropriate nerve impulses that are conducted by motor neurons to the effector organs or tissues, resulting in a coordinated response.
| 3. What are the major components of the nervous system involved in neural control and coordination? | |
Ans. The major components of the nervous system involved in neural control and coordination are:
- Central Nervous System (CNS): It comprises the brain and spinal cord. The CNS receives sensory inputs, processes them, and generates appropriate responses.
- Peripheral Nervous System (PNS): It includes all the nerves outside the CNS. The PNS transmits nerve impulses between the CNS and other body parts.
- Neurons: These are the basic functional units of the nervous system. They receive, transmit, and process nerve impulses.
- Neurotransmitters: These are chemical messengers released by neurons to facilitate communication between them.
| 4. How does the nervous system coordinate voluntary and involuntary activities? | |
Ans. The nervous system coordinates voluntary and involuntary activities through different divisions:
- Somatic Nervous System: It controls voluntary activities and allows conscious control over skeletal muscles. For example, moving limbs or speaking.
- Autonomic Nervous System: It controls involuntary activities and regulates the functioning of internal organs. It is further divided into the sympathetic and parasympathetic divisions, which have opposing effects on various organs. The sympathetic division prepares the body for fight-or-flight responses, while the parasympathetic division promotes rest and digestion.
| 5. What are the disorders related to neural control and coordination? | |
Ans. There are several disorders related to neural control and coordination, including:
- Parkinson's disease: A progressive neurological disorder characterized by tremors, stiffness, and difficulty in movement.
- Alzheimer's disease: A degenerative brain disorder leading to memory loss, cognitive decline, and behavioral changes.
- Stroke: A condition caused by the interruption of blood supply to the brain, resulting in neurological complications.
- Epilepsy: A disorder characterized by recurrent seizures due to abnormal electrical activity in the brain.
- Multiple sclerosis: An autoimmune disease that affects the central nervous system, leading to communication problems between the brain and the rest of the body.
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