Sensory Nerve Cells
Receive information and send impulses to the brain or spinal cord.
Sensory nerve cells, also known as sensory neurons, are specialized cells within the nervous system that respond to various stimuli such as touch, pressure, temperature, light, sound, and chemical signals. These neurons play a critical role in our ability to perceive and react to our environment.
Sensory neurons are found throughout the body, from the skin, muscles, and joints to internal organs such as the stomach and lungs. They have a unique structure that allows them to communicate with other neurons, as well as with other types of cells such as muscle cells and glandular cells.
Sensory neurons are connected to sensory receptors located in different parts of the body. Each sensory receptor is specialized to respond to a specific type of stimulus. For example, there are receptors that respond to light (such as those in the eye), receptors that respond to pressure (such as those in the skin), and receptors that respond to chemical signals (such as those in the nose and tongue).
When a sensory receptor is stimulated, it sends a signal to the sensory neuron, which then transmits the information to the spinal cord and eventually to the brain for processing. The brain then interprets the information and produces a response, such as moving away from a painful stimulus or reaching for a desired object.
In summary, sensory nerve cells are a critical part of the nervous system, enabling us to detect and respond to various stimuli in our environment.
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