Ch 1. Wonderfully Made Flashcards by Katie Donovan

Which system helps you see, hear, feel, smell, and taste?

The nervous system

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What are the three main parts of the nervous system?

the brain
the nerves
the spinal cord

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What does your brain do?

The brain controls the whole body.

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What do your nerves do?

The nerves carry messages to and from the brain.

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What do you call the bundle of nerve cells found in the backbone?

The spinal cord

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Which bone helps protect your brain?

The skull

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Which bone helps protect your spinal cord?

The backbone

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What are the five main senses?

sight
hearing
smell
taste
touch

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What do we call the parts of the body that are designed especially to help us react to the things around us?

The sense (or sensory) organs

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What do you call the part of the eye that is coloured brown, blue, green, or grey?

The iris

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Which part of the eye controls the amount of light that enters the eye?

The iris

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What do you call the black circle in the middle of the iris?

The pupil

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What does the pupil do?

The pupil is the opening that lets light into the eye.

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What do we call the part of the eye that focuses on what we’re looking at?

The lens

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What do we call the part of the eye that receives a picture of what we’re looking at?

The retina

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Which nerve carries the message of what you have just seen to your brain?

The optic nerve

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What did God give us to help protect our eyes?

forehead
cheekbones
eyelids
eyelashes
tears

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How can we help take care of our eyes?

use the right amount of light
keep sharp things away
eat foods with Vitamin A

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What are some foods rich in Vitamin A?

carrots
cheese
eggs
liver
peas
peaches

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When you read and write, what direction should the light come from?

above or behind

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How do eyelids and eyelashes protect our eyes?

They help to keep dust and other objects out of our eyes.

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How do tears help our eyes?

They keep our eyes moist and wash dust and dirt from the eyes.

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What does vibrate mean?

To move rapidly back and forth

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What are sound waves?

Sound waves are sound vibrations travelling through the air.

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What does sound travel through?

air water solids

What are the three main parts of the ear?

outer ear middle ear inner ear

How do sound waves enter the ear?

Through the **auditory canal**.

What do we call the thin piece of skin that separates the outer ear from the middle ear?

The eardrum

What are the three tiny bones in the middle ear called?

hammer anvil stirrup

What do we call the part of the inner ear that has liquid inside it?

The cochlea (COCK-lee-ah)

Which nerve sends sound messages to the brain?

The auditory nerve

How does God help protect our ears?

He designed our skull and he lined the auditory canal with tiny hairs and glands that make wax.

How do the hairs and wax in our ears protect them?

They work together to stop dust and other small particles (and sometimes insects!) from getting into the middle ear.

How can you help to protect your ears?

Don't stick objects in your ear Protect your ears from sharp blows (hits) Avoid very loud noises

Which two senses are closely connected?

Smell and taste

How do odours reach the nose?

The molecules travel through the air.

What are molecules?

Molecules are tiny particles.

What do we call the little bumps on our tongue?

Taste buds

What tastes do your taste buds detect?

sweet salty sour bitter

Where are the nerves of smell located?

The nerves of smell are located in the upper lining of our noses.

Where are the nerves of taste located?

The nerves of taste are located in our taste buds.

Which organ gives us our sense of touch?

Our skin

What are some of the other things our skin does?

Our skin protects covers and protects our whole body Our skin helps our bodies to stay at an even temperature.

What do we call the tiny holes in our skin?

Pores

Is our skin equally sensitive all over our body?

No, some areas of our skin are more sensitive than others.

What is an area of skin that is quite sensitive to touch?

Our fingertips are very sensitive to touch.

Name an area of our skin that is less sensitive to touch.

Our arms are less sensitive to touch.

Why is it important that we feel pain?

Pain tells our body that something is wrong or dangerous.

What protects the skin at the ends of our fingers?

Fingernails

What protects the skin at the end of our toes?

Toenails

How does your skin help you stay cool on a warm day?

Your pores open and release sweat to help cool your body.

How does your skin help you stay warm when you are cold?

The pores close up and form goosebumps to keep the heat in.

What do we call the crust that grows over a wound until new skin is formed?

A scab

What helps to stop our skin and hair from drying out?

Oil glands

How can you help to protect your skin?

By keeping it clean