How much do you really know about human physiology? Put it to the test with Zip Blitz, the quick-fire trivia game - fifty free questions, covering everything from the heartbeat and breathing to hormones and the immune system.
Physiology · October 2026 edition
| # | Player | Out of 500 | Correct | Score |
|---|---|---|---|---|
| 1 | Open | — | — | |
| 2 | Open | — | — | |
| 3 | Open | — | — |
Correct
1.4s
+10 points
15.0s
44 of 50 right · six short of Heart of a champion
Speed scores
Twenty seconds a question, and the faster you answer, the more you score. What's the main way humans cool down during exercise?
The ramp
Five rounds of ten, each one harder than the last.
Titles
When you finish, your score earns a title: Skipped a beat if you score nothing, Heart of a champion if you get every question right.
Answer Sheet
Review every question and compare answers with friends. Did they know which gland secretes growth hormone?
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