Baby Senses | Inside the Living Body

even a visit to the grocery store can

even a visit to the grocery store can overload the senses it’s noisy bright

overload the senses it’s noisy bright

overload the senses it’s noisy bright and smelly

the nose is working overtime high up

the nose is working overtime high up inside specialized nerves dangled in the

inside specialized nerves dangled in the

inside specialized nerves dangled in the Airstream they detect chemicals in the

Airstream they detect chemicals in the

Airstream they detect chemicals in the air and send an electrical signal to the

air and send an electrical signal to the

air and send an electrical signal to the brain which interprets the signals as

brain which interprets the signals as

brain which interprets the signals as smells the nerves are super sensitive

smells the nerves are super sensitive

smells the nerves are super sensitive every smell is a new sensation

the same goes for our hearing strange

the same goes for our hearing strange new world strange new sounds

sound waves vibrate the eardrum on the

sound waves vibrate the eardrum on the other side of the eardrum these tiny

other side of the eardrum these tiny

other side of the eardrum these tiny bones the ossicles vibrate in response

bones the ossicles vibrate in response

bones the ossicles vibrate in response they’re the smallest bones in the body

they’re the smallest bones in the body

they’re the smallest bones in the body but without them we would never hear a

but without them we would never hear a

but without them we would never hear a thing they use leverage to amplify the

thing they use leverage to amplify the

thing they use leverage to amplify the vibrations hitting the eardrum 22 times

vibrations hitting the eardrum 22 times

vibrations hitting the eardrum 22 times [Music]

the amplified vibrations now enter the

the amplified vibrations now enter the inner ear or cochlea it’s lined with

inner ear or cochlea it’s lined with

inner ear or cochlea it’s lined with delicate hairs when vibrations pass

delicate hairs when vibrations pass

delicate hairs when vibrations pass through the hairs vibrate at the base

through the hairs vibrate at the base

through the hairs vibrate at the base are the fragile hairs for high-frequency

are the fragile hairs for high-frequency

are the fragile hairs for high-frequency sounds at the top low frequency hairs

sounds at the top low frequency hairs

sounds at the top low frequency hairs each one 200 times thinner than a hair

each one 200 times thinner than a hair

each one 200 times thinner than a hair on our head

over time loud noises will damage these

over time loud noises will damage these hairs but at this age they’re perfect

our hearing will never be this good

our hearing will never be this good again the story is different for

again the story is different for

again the story is different for eyesight we’re born with very

eyesight we’re born with very

eyesight we’re born with very underdeveloped vision even at one month

underdeveloped vision even at one month

underdeveloped vision even at one month the world is blurred and mostly black

the world is blurred and mostly black

the world is blurred and mostly black and white every aspect of our vision is

and white every aspect of our vision is

and white every aspect of our vision is rudimentary the eye muscles are immature

rudimentary the eye muscles are immature

rudimentary the eye muscles are immature keeping us from pointing our eyes where

keeping us from pointing our eyes where

keeping us from pointing our eyes where we want to inside the eye the lens

we want to inside the eye the lens

we want to inside the eye the lens muscles still can’t focus and the lens

muscles still can’t focus and the lens

muscles still can’t focus and the lens flips the image it receives all through

flips the image it receives all through

flips the image it receives all through life we see the world upside down the

life we see the world upside down the

life we see the world upside down the picture only gets reoriented in our

picture only gets reoriented in our

picture only gets reoriented in our brains right now the picture is on the

brains right now the picture is on the

brains right now the picture is on the retina the screen at the back of the eye

retina the screen at the back of the eye

retina the screen at the back of the eye the retina has two types of cells rods

the retina has two types of cells rods

the retina has two types of cells rods and cones which transform the light that

and cones which transform the light that

and cones which transform the light that hits them into electric signals the

hits them into electric signals the

hits them into electric signals the cones detect color information but

cones detect color information but

cones detect color information but because they’re not developed yet we see

because they’re not developed yet we see

because they’re not developed yet we see mostly in black and white during our

mostly in black and white during our

mostly in black and white during our first month

first month

first month from the retina the signals travel along

from the retina the signals travel along

from the retina the signals travel along too thick nerves under the brain at the

too thick nerves under the brain at the

too thick nerves under the brain at the back is where we process visual

back is where we process visual

back is where we process visual information when the image arrives the

information when the image arrives the

information when the image arrives the real challenge begins our immature

real challenge begins our immature

real challenge begins our immature brains haven’t learned to interpret the

brains haven’t learned to interpret the

brains haven’t learned to interpret the data yet that’s changing fast