Chapter 10. Somatic and Special Senses. Sensory Receptors = detect environmental changes and trigger impulses that travel to central nervous system for interpretation 2 major categories of sensory receptors: 1. somatic senses = touch, pressure, temperature and pain
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Somatic and Special Senses
Sensory Receptors = detect environmental changes and trigger impulses that travel to central nervous system for interpretation
Olfactory Receptors = chemoreceptor s (chemicals dissolved in liquids stimulate them)
Did you know? Humans have about 12 million olfactory receptor cells. Bloodhounds have about 4 billion such cells!
Each taste bud has about 50 – 150 taste cells that are replaced every 3 days.
Did you know? Cats have only about 473 taste buds and dogs have about 1,700…..that is why they are satisfied with a less varied diet than humans.