The mammal heart

By |2025-02-12T09:20:21+02:00February 12th, 2025|Notes, O Level Science Notes, Ordinary Level Notes|

The structure of the human heart. The structure of the human heart. ZIMSEC O Level Combined Science Notes: The mammal heart

  • Is made up of muscle which contracts continuously throughout the mammal’s life.
  • The number of contractions differ from mammal to mammal
  • In elephants it contracts about 25 times/minute
  • In humans it contracts about 70-80 […]