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Questions and Answers
What is the job of sensory receptors?
What is the process of converting one form of energy into another called?
How many stages are involved in the sensory process?
What does sensory adaptation refer to?
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Which type of information do sensory receptors transmit regarding the stimulus?
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What is the main role of receptors in the sensory process?
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Which type of receptors adapt slowly and keep responding to continuous stimulation?
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Where are nociceptors primarily located?
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In which category do chemoreceptors play a role in maintaining calcium and electrolyte balance?
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Which type of receptors sense vibration, touch, pressure, stretch, and tension?
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Where are encapsulated nerve endings wrapped in?
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Which pathway describes the route that most sensory information takes to reach the cerebral cortex?
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Study Notes
Sensory Receptors and Their Functions
- Sensory receptors detect stimuli from the environment and convert them into signals.
- The process of converting one form of energy into another is known as transduction.
- The sensory process involves three main stages: detection, transduction, and perception.
Sensory Adaptation
- Sensory adaptation refers to the diminished sensitivity to a stimulus as a result of constant exposure.
- This phenomenon allows organisms to focus on changes in the environment rather than constant stimuli.
Information Transmission
- Sensory receptors transmit information regarding the type, intensity, and duration of the stimulus.
- This information is crucial for the body’s ability to react appropriately to various environmental conditions.
Role of Receptors
- Receptors play a main role in detecting sensory stimuli and initiating the sensory process.
- They are specialized to respond to specific types of stimuli such as light, sound, and temperature.
Types of Receptors
- Tonic receptors adapt slowly and continue to respond to continuous stimulation, providing ongoing information about the stimulus.
- Nociceptors, which detect pain, are primarily located in the skin, joints, and organs throughout the body.
Chemoreceptors and Balance
- Chemoreceptors help maintain calcium and electrolyte balance by sensing chemical changes in the environment.
Mechanoreceptors
- Mechanoreceptors are responsible for sensing vibration, touch, pressure, stretch, and tension in the body.
Structure of Receptors
- Encapsulated nerve endings are wrapped in connective tissue, enhancing their sensitivity to stimuli.
Sensory Pathways
- Most sensory information takes the ascending pathway to reach the cerebral cortex, where perception occurs.
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Description
Test your knowledge on sense organs and sensory receptors. Learn about the types of sensory receptors and their functions, including transduction and the two stages of the sensory process.
