the receptor detects the stimulus and the sensor neurone sends it to the CNS (central nervous system
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Pressure receptors in the skin pick up the stimulus. It passes along a sensory neurone to the central nervous system. Within the CNS it is transferred to the cerebral contex via an association neurone, relay neurone.
A reflex is an automatic response, that protects the organism from a harmful stimulus. The receptors detect a stimulus which generates a nerve impulse along the sensory neurone to the Central Nervous System (CNS). The CNS decides the appropiate response to the stimulus. The nerve impulse then travels across a synapse to the relay neurone, across another synapse to the motor neurone to the effector. This is normally a muscle or an organ which moves or responds to bring about a response appropiate to the stimulus.
A Stimulus is picked up by a receptor, travels along a sensory neurone to either the spinal cord or brain, then it is processed to produce some response.
The nervous system, specifically the sensory organs such as the eyes, ears, skin, nose, and tongue, transmit information to the brain. Signals, in the form of electrical impulses, travel along nerves to deliver sensory information to the brain for processing.
Sensory impulses are typically in the form of electrical signals that travel along nerve fibers from sensory receptors to the brain or spinal cord. These impulses carry information about sensations such as touch, temperature, pain, and pressure. The brain then processes these impulses to generate a conscious perception of the sensory input.
Impulses from the sense organs travel to the brain along nerve fibers known as sensory neurons. These neurons carry the signals to the brain, where they are processed and interpreted to create our perceptions and sensations.
# Motor neurones have cell bodies inside the Central Nervous System (CNS) whilst in sensory neurones the cell body is located outside of the CNS # Motor neurones transmit impulses from the CNS to the effector which brings about a response to the situation, sensory neurones transmit impulses from to the CNS from the receptor. # Sensory neurones transmit impulses as a result of external stimuli such as pressure, light, temperature etc. Motor neurone transmit impulses passed along the CNS to the effector.
The thalamus
Sensory receptors detect stimuli and transmit that information to the integrating center in the nervous system, such as the brain or spinal cord. The integrating center processes the incoming signals and coordinates an appropriate response, which is then carried out by the effector organs.
Firstly your receptor cells pick up a stimuli and sends an electrical impulse along the sensory neurone's axon to the spinal cord.the impulse is then passed onto the relay neurons IN the CNS(the spinal cord decides what to do but the brain is also informed). The relay neurone then passes the command from the spinal cord in the form if an impulse to the motor neurone.the impulse travels along its axon to the effector. Hope it helps P.S. •relay neurones exist only within the CNS and not outside it. •reflex arcs take the shortest possible route
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