Neural Controls and Coordination Biology MCQ for NEET
Neutral control and coordination in the human body refer to the intricate system of nerves and hormones that work together to regulate bodily functions and ensure homeostasis. The nervous system, comprising the central nervous system (CNS) and peripheral nervous system (PNS), is primarily responsible for immediate responses to stimuli. The CNS, consisting of the brain and spinal cord, processes information and dictates actions, while the PNS transmits signals between the CNS and the rest of the body.
Neurons, the basic units of the nervous system, communicate through electrical impulses and neurotransmitters, enabling rapid responses and coordination of activities such as movement, sensation and reflexes. Understanding these mechanisms is important for NEET students, as it forms the foundation for comprehending more complex physiological processes and medical conditions.
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Neural Controls and Coordination Biology MCQ for NEET
Neutral control and coordination play an important role in maintaining homeostasis and ensuring the efficient functioning of the body. This system, primarily mediated by the nervous system and the endocrine system, allows for rapid and precise responses to internal and external stimuli. This integration is essential for processes such as movement, digestion and sensory perception, which are fundamental for survival and daily functioning.
In the NEET syllabus, understanding neutral control and coordination is vital for aspiring medical students as it forms the basis for comprehending complex physiological processes and mechanisms. A thorough grasp of this topic aids in diagnosing and treating neurological and hormonal disorders.
Neural Controls and Coordination Biology MCQ for NEET
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FAQs about Neural Control and Coordination
- What is the central nervous system (CNS)?
Answer. The CNS consists of the brain and spinal cord. It is responsible for integrating sensory information and responding accordingly.
- What is the peripheral nervous system (PNS)?
Answer. The PNS includes all the nerves outside the CNS. It connects the CNS to the limbs and organs, essentially serving as a communication relay.
- What are neurons?
Answer. Neurons are the basic functional units of the nervous system. They transmit information through electrical and chemical signals.
- What is a synapse?
Answer. A synapse is a junction between two neurons or between a neuron and a muscle/gland cell, where the transmission of a signal occurs.
- What are the main parts of a neuron?
Answer. A neuron has three main parts: the cell body (soma), dendrites and an axon.
- What is the function of myelin sheath?
Answer. The myelin sheath is a fatty layer that covers the axons of some neurons, providing insulation and speeding up the transmission of nerve impulses.
- What are neurotransmitters?
Answer. Neurotransmitters are chemical messengers that transmit signals across a synapse from one neuron to another.
- What is the difference between afferent and efferent neurons?
Answer. Afferent neurons (sensory neurons) carry information from sensory receptors to the CNS, while efferent neurons (motor neurons) carry information from the CNS to effectors like muscles and glands.
- What are the main divisions of the autonomic nervous system?
Answer. The autonomic nervous system is divided into the sympathetic and parasympathetic nervous systems, which have generally opposite effects on target organs.
- How does a reflex arc work?
Answer. A reflex arc is a neural pathway that controls a reflex action. It involves a sensory receptor, a sensory neuron, a motor neuron and an effector, often bypassing the brain for a quick response.
