3.6 The brain

• Biologie
• Middelbare school
• vwo
• Leerjaar 1

3.6 The brain

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Lessonup!

Planning

Learning objectives

Introduction & k*****

Instruction 

• the brain 
• memory
• the nervous system of worms

Homework

Study objectives 

End of class & k*****

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 is used by your brain, according to you?

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 larger muscular movements

coördination = delicate tuning of muscle contraction when moving

Brain and 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

The brain is folded to keep it as compact as possible. Many brain cells together.

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 imortant stimuli:

light stimuli (with head and tail)

vibrations (pressure senses in the skin)

What?	Make: 3.6 assignment 3 - 14. This will be homework!
How?	In your book or laptop
Help?	First ask your neighbour, if you can't figure it out, raise your hand.
Time?	10 - 20 minutes, See whiteboard!
Finished?	Decision time! 1. See the shared lesson about 3.2 Seeing. Study the anatomy of the eye until you know it by heart! 2. Are any non-biology words that you could include in your PIF-file?

Study objectives

• You can name the parts of your brain, how they work and how you study.
• You can explain how the nervous system of an earthworm is different to that of a human.