Nervous System and Stimulus Processing – Basic Principles
How it works
The nervous system consists of the central nervous system with the brain and spinal cord as well as the peripheral nervous system. It receives stimuli from the environment and the inside of the body, processes them, and controls reactions. Nerve cells transmit electrical signals, which are called action potentials. Sensory nerves transmit information from sense organs and other receptors to the central nervous system, motor nerves send commands to muscles. Reflexes are quick, automatic reactions to certain stimuli that often occur without conscious control by the brain. At synapses, excitation is usually transmitted chemically by neurotransmitters.
The nervous system receives stimuli, processes them, and controls reactions through electrical and chemical signals. It consists of sensory and motor components as well as reflex mechanisms.
An example
Which part of the nervous system is mainly responsible for the conscious planning and control of movements?
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50 Exercises
To the learning unit →Own explanation and own practice exercises by AmyMath. Subject reference framework: Biology. The topic assignment may vary by federal state.