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Eyes and Ears by Mind Map: Eyes and Ears
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Eyes and Ears

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sound waves

The longitudinal progressive vibrations in an elastic medium by which sounds are transmitted.

Need air to make sound.


The organ of sight, in vertebrates typically one of a pair of spherical bodies contained in an orbit of the skull and in humans appearing externally as a dense, white, curved membrane, or sclera, surrounding a circular, colored portion, or iris, that is covered by a clear, curved membrane, or cornea, and in the center of which is an opening, or pupil, through which light passes to the retina. From


A colourful part of your eye. A ring of muscle that open and closes to make the pupil large or small.


Eye Ball

optic nerve

The optic nerve is a nerve that sends the images from the eye to the brain


The pupil is the variable-sized, black circular or slit shaped opening in the center of the iris that regulates the amount of light that enters the eye.


Optic Nerve

Largest sensory nerve of the eye; carries impulses for sight from the retina to the brain.



The organ of hearing and equilibrium in vertebrates, in humans consisting of an external ear that gathers sound vibrations, a middle ear in which the vibrations resonate against the tympanic membrane, and a fluid-filled internal ear that maintains balance and that conducts the tympanic vibrations to the auditory nerve, which transmits them as impulses to the brain. From


This is the part of the ear that people can see. It's what people pierce to wear earrings


a tiny bone that passes vibrations from the eardrum to the anvil

Ear Drum

The tympanic membrane (also tympanum or myrinx), is a thin membrane that separates the external ear from the middle ear. Its function is to transmit sound from the air to the ossicles inside the middle ear. The malleus bone bridges the gap between the eardrum and the other ossicles. Definition From Wikipedia


The outer fleshy part of the ear it also takes in 


The organ of the inner ear that converts mechanical vibrations into electrical impulses.


One of three bones of the middle ear that help transmit sound waves from the outer ear to the cochlea. Also called the incus.


The stapes, one of the three bones in the middle ear

Semicircular canals





Living things that emit light by not heating up


Objects that emit light by heating up  


light can teravel through a vacuum but there it is very rare if not imposoble to make a vauum

Inventions that can help us see

Help us see things

Vision Aid

Inventions that can help us hear

Hearing aids

cochlear implant

types of eyes

pit eye

pit eyes are sent into the pit to reduce the angle of light.

pinhole eye

a pinhole eye is an advance pithole eye with a most notably a small aperture (which may be adjustable) and deep pit

spherical lensed eye

The resolution of pit eyes can be greatly improved by incorporating a material with a higher refractive index to form a lens,

multiple lensed

some marine animals bear more that one lens, shuch as the cepod pontella

refractive cornea

the eyes of most terestrial vertabray.the fluid has a higher refractive index in the air.

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