When you experience changes in light, sound, and temperature, which cells send signals toward the central nervous system?
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1 point
dendrites
sensory neurons
axons
sensory neurons
The cells that send signals toward the central nervous system when you experience changes in light, sound, and temperature are called sensory neurons.
The cells that send signals towards the central nervous system (CNS) in response to changes in light, sound, and temperature are called sensory neurons. Sensory neurons are specialized nerve cells that are responsible for detecting sensory stimuli from our environment. These cells have specific receptors that can perceive different sensory modalities such as light, sound, temperature, pressure, and pain.
When sensory neurons detect changes in light, sound, or temperature, the receptors on these neurons are activated. This activation generates an electrical signal, known as an action potential, which travels along the sensory neuron's axon towards the CNS. The axons of sensory neurons serve as a communication pathway for transmitting these signals from the periphery (outer parts of the body) to the central nervous system (brain and spinal cord).
Dendrites, on the other hand, are the branches of a neuron that receive signals from other neurons. While dendrites play a crucial role in integrating and receiving information from other neurons, they are not the cells specifically responsible for detecting changes in light, sound, and temperature and subsequently sending signals towards the CNS.
Therefore, the correct answer to your question is sensory neurons.