5.7 + 5.8 Feeling and the nervous system

• Biologie
• Middelbare school
• havo, vwo
• Leerjaar 1,2

5.7 + 5.8 Feeling and the nervous system

- Take off your coats

- Take out your laptop

- Join the lesson-up

This lesson

10 min	Revision previous learning goals
2 min	Learning goals for 5.7
15 min	New info + exercises
2 min	Learning goals for 5.8
15 min	New info + exercises
6 min	Review learning goals

Which part of the eye sends
impulses to the brain
so that you can see?

5.3.2 What do the parts of your eye do to help you see?

1. the cornea
2. the pupil
3. sclera
4. the retina

The picture shows Paul van Loon
What are his pupils like?

5.3.2 What do the parts of your eye do to help you see?

1. bigger than without sun glasses
2. the same size as without sun glasses
3. smaller than without sun glasses

Put in the correct order

5.1 How does your body notice change?

1.

2.

3.

4.

An impulse is conducted to the brain

a low temperature reaches the sensory cells

The girl feels that the water is cold.

Cold senses convert stimuli into impulses

How does sound reach your brain?

5.4.2 What do the parts of your ear do to help you hear?

the hammer, anvil, and stirrup vibrate

fluid in the cochlea vibrates

sensory cells convert stimuli into impulses

impulses are passed on to the brain

sound creates vibrations in the air

eardrum vibrates

What is the olfactory
system used for?

5.5.1 Which body parts are involved in your sense of smell?

1. The exchange of gas
2. Clearing the nasal cavity of dust particles
3. Used for the sense of smell
4. Clearing the bronchiole of dust particles.

You have different taste
buds for every taste
(sweet, salt, bitter, sour)

5.6.1 How does your tongue help you taste?

1. True
2. False

Learning goals 5.7 Feeling

1. What are the different layers of the skin?

2. Which sensory receptors are found in your skin?

Layers of the skin

Epidermis - Top layer, protection

Dermis - Second layer,  it produces sweat, grows hair, makes oil and brings blood to your skin.

Subcutaneous fat -  padding and controls body temperature

People can get burns from, for instance, hot water, fire or the sun. Burns are categorised in terms of how deep and severe they are. In a second-degree burn, the two upper layers of the skin are affected.

What are the names of the two layers of skin that are affected in a second-degree burn?

1. Dermis
2. Subcutaneous fat
3. Epidermis
4. Padermis

Sensory receptors

touch – a light stroke or tap;

pressure – a ‘heavy touch’;

temperature – hot or cold;

pain – when something is damaging your tissue.

Many patients with severe burns cannot feel pain. Explain why this is so.

Learning goals 5.8 

1. What are the parts of the nervous system and what do they do?

2. How do the parts of the nervous system work together?

Why do we need a nervous system?

Nervous system

2 parts

central nervous system - brain and the spinal cord.

Peripheral nervous system - Part of the nervous system that is located in all areas of your body except the brain and the spinal cord.

The spinal cord

Connects the brain with the peripheral nervous system

The brain

Different areas control different functions

Cerebrum - The largest part of the brain where thinking takes place and where your memories are stored.

Brain stem - controls automatic functions e.g. breathing

Cerebellum - Coordinates movement

What would happen if you were to damage your spinal cord right below your shoulders?

What is the largest part of the brain?

1. Spinal cord
2. Cerebellum
3. Cerebrum
4. Brain stem

Cerebrum

Cerebellum

Brain stem

Vision

Heartbeat

Balance

Thinking

Voluntary muscle movements 

Breathing

Blood pressure

Involuntary muscle movements

Hearing

Smell

Taste

5.7.1 What are the different layers of the skin?

I don't understand it and need more explanation😟

I don't understand it, but i'll try reading my textbook first 🤓

I understand it, but I can't explain it 🙂

I understand it and I can explain it to someone else 😎

5.7.2 Which sensory receptors are found in your skin?

I don't understand it and need more explanation😟

I don't understand it, but i'll try reading my textbook first 🤓

I understand it, but I can't explain it 🙂

I understand it and I can explain it to someone else 😎

5.8.1 What are the parts of the nervous system and what do they do?

I don't understand it and need more explanation😟

I don't understand it, but i'll try reading my textbook first 🤓

I understand it, but I can't explain it 🙂

I understand it and I can explain it to someone else 😎

5.8.2 How do the parts of the nervous system work together?

I don't understand it and need more explanation😟

I don't understand it, but i'll try reading my textbook first 🤓

I understand it, but I can't explain it 🙂

I understand it and I can explain it to someone else 😎

Homework:

Start making/learning flashcards for chapter 5. Glossary can be found in the som Jaarbijlagen