Biology › Section N · Nervous and sensory systems › Topic N.6
Taste, smell, hearing, and balance
Four senses, two tricks. Taste and smell catch molecules with receptor proteins; hearing and balance bend tiny hairs on mechanoreceptor cells. Following each from stimulus to brain shows how one set of rules, met in Sensory processes and touch, produces very different experiences.
In this topic
- The chemical senses
- How smell works
- Smell in the brain, and pheromones
- Taste buds and tastants
- Worked example: holding your nose
- Sound: pitch and loudness
- From eardrum to cochlea
- Hair cells and place coding
- Worked example: locating a hearing problem
- Balance: the vestibular system
- Common mistakes to avoid
- Key takeaways
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