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✦ HUMAN BODY · THE SENSES ✦

TAS
TE!

Five basic tastes plus your nose make every bite.

📖 Topic 15⏱️ 5 pages🧠 Quiz
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BITE
Food touches tongue
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BUDS
Detect chemicals
5️⃣
TASTES
Sweet to umami
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SMELL
Adds flavour
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YUM
Brain decides
👅 HOW TASTE BUDS WORK
TOPIC 15 · 5 TASTES · FLAVOUR VS TASTE
PAGE 1 OF 5 · TASTE STARTS ON THE TONGUE
TONGUE
Close-up of tongue showing bumps and taste buds detecting food chemicals
TINY SENSORS ON YOUR TONGUE
Your tongue is covered in tiny bumps called papillae. Inside many of them sit taste buds, little clusters of cells that sense chemicals in food. When you bite an apple or sip soup, dissolved bits touch those cells. The cells send messages along nerves toward the brain. You have thousands of taste buds, not just on the tongue but also on the roof of your mouth and throat. They replace themselves every couple of weeks, like a slow refresh.
⚡ DID YOU KNOW?
Taste buds live about 10 to 14 days before new ones grow. Burning hot pizza can sting them, but they usually heal quickly.
YUM!
CELLS
Microscopic taste bud cells sensing sweet and salty molecules in saliva
🔬 Each taste bud holds dozens of receptor cells that lock onto specific food chemicals.
💧 Saliva dissolves food so those chemicals can reach the sensors.
MAP
Whole tongue tasting all flavours not just one zone for sweet or salty
🗺️ Old tongue maps were wrong: all basic tastes can be sensed across the tongue.
👅 Some spots may feel a taste slightly stronger, but none are taste-free zones.
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