The Brain Controls the Body
Understand that the brain is the body’s control centre: it receives messages from the senses, thinks and makes decisions, and sends messages through nerves to tell muscles what to do
What a learner can do afterwards
- State that the brain is inside the skull and controls the whole body
- Describe the basic loop: senses send information to the brain, the brain decides what to do, and sends messages to muscles
- Give an example (e.g. eyes see a ball coming, brain decides to catch it, nerves tell hands to move)
1 · Read
Your brain sits inside your skull, safe and snug. It is the boss of your whole body. It tells every part what to do.
A ball flies toward Mia. Her eyes see it come. Her brain decides to catch it. Nerves carry the message fast. Her hands move and catch the ball.
Your brain never stops working, even while you sleep. It keeps your heart beating and your lungs breathing all night.
The brain is the body's boss. It senses, decides, and tells muscles what to do.
Imported from the hoofer-content corpus. Two academy readings retained with null license: academy:article:mcat:x84565b80 and academy:article:mcat:x33dc4ce5. The rewritten nerve-signalling reading was written for this dataset. Per-item provenance in file.
2 · Watch
Take it off screen
Where it sits
Learn first
Nothing; this is a starting point.
Where this leads
Jobs that lean on this skill. Follow one to see everything it is built on.
8 questions wait behind this lesson, each with its answer explained. Every answer feeds the sky: stars light as they are learned, and dim when it is time to come back.