How Your Nose Smells
    Body & Brain

    How Your Nose Smells

    Lock-and-key chemistry: ~400 receptors + 1 trillion patterns. Direct line to memory.

    You can smell fresh bread from down the block. Smoke from miles. Mom's cooking through walls. How does your nose pull that off?

    Concepts you just met
    Olfactory ReceptorsLock-and-KeyVOCsMemory Bridge