Science
Nervous system
तंत्रिका तंत्र
In this Class 10 Science topic from Control and Coordination, students learn how the nervous system receives information, processes it, and produces suitable responses. The topic explains the role of neurons, sensory and motor nerves, the brain, spinal cord, and sense organs in coordinating body activities. Students also explore nerve impulses, reflex actions, and how reflex arcs enable quick responses, building a clear understanding of communication and coordination in the human body.
Practice questions
Why are brain or spinal cord needed in the process of message moving from receptor to effector in humans?MediumLevel 16If receptors work properly but the control centre cannot interpret the message, why can the response be wrong?HardLevel 16If a drug blocks chemical message at a synapse, what effect will it have on nervous coordination?MediumLevel 16If photoreceptors in the eye are normal but the visual area of the brain is affected, why can vision still be difficult?HardLevel 16A student's pupil immediately becomes smaller in bright light. What is the correct control pathway in this response?HardLevel 17After an injury, a person can walk but fine control of the hand while writing is disturbed. Which brain part may be more affected?HardLevel 17In which situation should a student understand that not just one organ but the whole pathway is important in a control system?HardLevel 17Which option correctly matches receptor, effector, and control centre?MediumLevel 18Which option gives the three main roles of the nervous system in a correct order?MediumLevel 18What type of control is shown by the pupil becoming smaller in bright light?MediumLevel 18Which statement correctly states a limitation of nervous control?HardLevel 18Why can balanced walking be affected if the cerebellum is damaged?MediumLevel 16If photoreceptor cells of the retina do not work properly, why will visual information not reach the brain correctly?MediumLevel 16Which statement correctly distinguishes the roles of the cerebrum and cerebellum?MediumLevel 16In which example is the role of the cerebellum most clearly seen?MediumLevel 17Which option correctly describes the functional relationship between the central and peripheral nervous systems?MediumLevel 18Which is the smallest bone in the human body?EasyLevel 1Brain and spinal cord are main parts of which system?EasyLevel 1Neuron is the basic unit of which system?EasyLevel 1