Lesson 10: Organisms Sense Their Environment
Sensory receptors detect signals from both inside and outside the body
Receptors that detect stimuli within the body are called interoceptors
o
Outside are called exteroceptors
3 Categories of Receptors and Function:
Mechanoreceptors
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Touch
o
Hearing (special sense)
o
Balance (special sense)
Special because receptors are located in an organ specialized for that
particular sense
Chemoreceptors
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detect chemical stimuli
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taste (special sense)
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smell (special sense)
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pH
Electromagnetic Receptors
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Vision (special sense)
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Detect electromagnetic energy such as light and heat
Conveying Sensory Information
Interpretation
Sensory Transduction and Transmission
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- Spring '11
- SIMMONS
- special sense
