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Neural Control and Coordination Mind Map - NEET Biology Class 11

Mind Map: Neural Control and Coordination

Mind Map: Neural Control and Coordination

The document Neural Control and Coordination Mind Map - NEET Biology Class 11 is a part of the NEET Course Biology Class 11.
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FAQs on Neural Control and Coordination Mind Map - NEET Biology Class 11

1. What is the role of the nervous system in coordination?
Ans. The nervous system is essential for coordination as it facilitates communication between different body parts. It gathers sensory information from the environment, processes this information in the central nervous system (CNS), and sends out appropriate responses to effectors such as muscles and glands, ensuring a coordinated reaction to stimuli.
2. What are the main components of the human nervous system?
Ans. The human nervous system is primarily divided into two main components: the central nervous system (CNS), which comprises the brain and spinal cord, and the peripheral nervous system (PNS), which consists of all the nerves that branch out from the CNS to the rest of the body. The PNS further divides into the somatic nervous system and the autonomic nervous system.
3. How do neurons transmit signals?
Ans. Neurons transmit signals through a process known as neurotransmission. When a neuron is stimulated, it generates an action potential, which is an electrical impulse that travels along its axon. This impulse triggers the release of neurotransmitters at the synapse, allowing communication with adjacent neurons or target cells, thus propagating the signal throughout the nervous system.
4. What is the difference between voluntary and involuntary actions?
Ans. Voluntary actions are those that are consciously controlled by individuals, such as moving an arm or leg; these actions involve the somatic nervous system. In contrast, involuntary actions occur automatically without conscious control, such as reflexes or the regulation of heart rate, which are governed by the autonomic nervous system.
5. What is the function of reflex arcs in the nervous system?
Ans. Reflex arcs are neural pathways that mediate reflex actions. They consist of a sensory neuron, an interneuron in the spinal cord, and a motor neuron. When a stimulus is detected, the sensory neuron sends a signal to the spinal cord, which processes the information and immediately sends a response through the motor neuron to elicit a quick, involuntary reaction, thus protecting the body from harm.
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