vison and hearing

Question 1

cornea?

Answer 1

Clear outer covering of the eye

Question 2

Iris?

Answer 2

Colored part of the eye that protects your eyes from light (changes size to allow more or less light in)

Question 3

Pupil

Answer 3

Hole that allows light in (looks like a black dot in the middle of the eye)

Question 4

Lens

Answer 4

Will bend and focus light which lets you focus on certain objects

Question 5

Retina

Answer 5

t is in the back of the eye. It receives the images, and contains many receptors

Question 6

Rods

Answer 6

Help you see in low light and black and white

Question 7

Cones

Answer 7

C for color, they help you see color in bright light

Question 8

Optic nerve

Answer 8

Connects the eye to the brain, without that vision wouldn’t be possible

Question 9

Why do some claim that we see the world upside down?

Answer 9

The images that we see are upside down on the retina because the retina is curved. It is flipped when the images go through the optic nerve

Question 10

Why do we have a blind spot?

Answer 10

Where the optic nerve meets the retina, you have no respirators.

Question 11

What does 20/20 vision mean?

Answer 11

The ability to see something clearly from 20 feet away that an average person would see from 20 feet away. (average vision)

Question 12

What does 20/80 vision mean?

Answer 12

You have to be 20 feet away to be able to see something that someone with 20/20 vision can see from 80 feet away

Question 13

What is an astigmatism?

Answer 13

Your lens or cornea is irregularly shaped

Question 14

What are cataracts?

Answer 14

When the lens becomes cloudy (because your cat attacks (cataracts) your lens)

Question 15

What is glaucoma?

Answer 15

A buildup of fluid in the eye that causes increased pressure

Question 16

Auditory Canal?

Answer 16

The tube that sound travels through

Question 17

Ear Drum

Answer 17

A thin flap of skin that is stretched tight like a drum and vibrates when sound hits it

Question 18

Semicircular Canals?

Answer 18

Three tiny, fluid filled tubes in your ear that help you keep your balance

Question 19

Cochlea

Answer 19

A spiral shaped tube that looks like a snail shell that is deep in your ear and helps change sound into nerve messages and sends them to the brain

Question 20

Auditory Nerve

Answer 20

A nerve connecting the inner ear with the brain and carrying nerve impulses concerned with hearing and balance

Question 21

Eustachian tube

Answer 21

Connects the middle ear to the back of the throat that balances pressure

Question 22

What are the hammer, anvil, and stirrup? What makes them special?

Answer 22

They are the three tiniest bones in your ear, they hit each other to transmit sound

Question 23

What is proprioception?

Answer 23

Is the awareness of where your body is in space

Question 24

Briefly describe how smell works:

Answer 24

You have receptors in your nose that picks up the chemical that is giving off and then sends it to the brain

Question 25

Briefly describe how taste works:

Answer 25

There are receptors on the taste buds that are picking up and having a reaction then they send signals to the brain which then understands the taste you are tasting