Sensory receptors
sensory nerve endings that respond to stimuli
Sensory receptors are specialized cells or structures within the body that respond to external stimuli and transmit this information to the nervous system in the form of electrical signals.
There are five types of sensory receptors:
1. Mechanoreceptors: These receptors respond to mechanical stimuli such as pressure, touch, vibration, stretch, and sound. They are found in the skin, muscles, tendons, and joints.
2. Chemoreceptors: These receptors respond to chemical stimuli such as taste and smell. They are found in the mouth, nose, and throat.
3. Photoreceptors: These receptors respond to light stimuli and are responsible for vision. They are found in the retina of the eye.
4. Thermoreceptors: These receptors respond to temperature stimuli such as hot or cold. They are found in the skin and other tissues.
5. Nociceptors: These receptors respond to damaging or potentially damaging stimuli such as pain. They are found in the skin, muscles, and internal organs.
Sensory receptors play an essential role in our daily lives by allowing us to perceive our surroundings and respond to stimuli appropriately. They are crucial for maintaining homeostasis and detecting potential threats to our well-being.
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