1 The General & Special Senses Chapter 17 Introduction • Senses – our perception of what is “out there” • 2 groups – General senses – Special senses General Senses • Includes senses that are skin or kinesthetic – Temperature, pressure, touch, pain, vibration, proprioception • Pass information along the spinal nerves and pathways to the somatosensory cortex Special Senses • Olfaction, gustation, equilibrium, hearing, & vision • Found within complex sense organs • Pass information along the cranial nerves to specific areas of the cerebral cortex. Receptors • Sensory receptors are transducers – Change stimuli into electro-chemical impulses – Specific receptors can transduce only certain types of stimuli • Two general types – Exteroceptors – Interoceptors Interpretation of Sensory Information • Occurs in cerebral cortex • Depends on the area of the cerebral cortex that receives the information • Also depends on the sequence of neurons carrying the information
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1
The General & Special Senses
Chapter 17
Introduction
• Senses – our perception of what is “out there”
• 2 groups – General senses – Special senses
General Senses
• Includes senses that are skin or kinesthetic – Temperature, pressure, touch, pain, vibration,
proprioception • Pass information along the spinal nerves