3.6 The brain

• Biologie
• Middelbare school
• vwo
• Leerjaar 1

3.6 The brain

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Planning

Learning objectives

Introduction

Instruction 

• the brain 
• memory
• the nervous system of worms

Homework

Learning objectives 

End of class

Learning objectives

• You will learn about the parts of your brain, how they work and how you study.
• You will learn about the nervous system of worms.

To make your brain 'crack'

When playing chess, but also with normal, simple things, your brain uses a lot of energy.

On average, what percentage of your energy do you think is used by your brain?

1. 5%
2. 10%
3. 15%
4. 20%

The brain

The brain; the cerebrum

cerebral cortex = completely folded external surface of the cerebrum

sensory cortices = part of the cerebral cortex where awareness takes place or reactions arise.

The brain; the cerebellum

The cerebellum = part of the brain that is responsible for coordinating muscular movements

coordination = delicate tuning of muscle contraction when moving

The brain; the brainstem

brainstem = the connection of cerebrum and cerebellum with your spinal cord 

subconscious body = processes of your body that occur automatically

E.g. heart rate, breathing, body temperature, pupillary reflex

Your brain and learning

New connections between nerve cells

Automation = using the same nerve cells over and over again, so that something happens automatically.

Memory

Short-term memory = memory information for a short amount of time

(e.g. short shopping list)

Long-term memory = information that you remember for a long time

(e.g. your own phone number)

memory trace = pattern of connections between neurons on the cerebral cortex;

 The nervous system of an earthworm

two nerve centres = centre of neurons where impulses from various senses come together and  are send to other nerve centres or muscles

Two important stimuli:

light stimuli (with head and tail)

vibrations (pressure senses in the skin)

What?	Make: 3.6 assignment 3 - 14
How?	In your book.
Help?	Raise your hand or ask your neighbour.
Time?	10 minutes
Finished?	Check your answers! Then make the assignments of summarize.

Learning objectives

• You will learn about the parts of your brain, how they work and how you study.
• You will learn about the nervous system of worms.