The human circulatory system
I can explain the role of the circulatory system in supplying every living cell in the human body with the substances it needs to stay alive.
The human circulatory system
I can explain the role of the circulatory system in supplying every living cell in the human body with the substances it needs to stay alive.
Lesson details
Key learning points
- Humans are multicellular organisms; the human body is made up of millions of living cells.
- Every cell must be supplied with substances for respiration, growth and repair; waste products must be removed.
- The circulatory system transports substances between cells and the gas exchange, digestive and excretory systems.
- The circulatory system is made up of the heart, blood vessels and blood.
Keywords
Multicellular - An organism containing many cells.
Nutrients - A substance that provides essential substances for energy, growth or repair.
Waste - Products that are no longer required by cells.
Circulatory system - The system which transports nutrients and waste around the body.
Common misconception
Nutrients and waste are either not produced, or not by every cell, with misconceptions about where these substances come from or go to and what the roles of the various systems are as a result.
Key nutrients and waste products are dealt with individually and related to the relevant body systems. These ideas are focused on in main and check tasks.
Licence
This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).
Lesson video
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Starter quiz
6 Questions
Exit quiz
6 Questions
carry oxygen
fight disease
the fluid that cells and nutrients and waste products are dissolved in
cause blood clotting and scab formation