Mod 5/6 Flashcards
what is transduction
the process where a sense organ changes/transforms physical energy into electrical signals that become nerve impulses which are sent to the brain for processing
Example of transduction
When a skunks molecules enter your nose which transforms into impulses that are interpreted by your brain as a bad odor
what is adaptation
refers to the decreasing response of sense organs the more they are exposed to a continuous level of stimulation
example of adaptation
the continuous stimulation of clothes on your skin results in adaptation so you no longer feel them
what are sensations
relatively meaningless bits of information that result when the brain processes electrical signals that come from sense organs
what are perceptions
meaningful sensory experiences that result after the brain combines hundreds of sensations
what bones make up the ossicle
hammer, anvil, and stirrup
what do the ossicles do?
Act as levers that amplify the vibrations, which cause the oval window to vibrate
what makes up the outer ear?
pinna and auditory canal
what is the pinna and what does it do
ear lobe
Picks up sound waves and sends then down the auditory canal
what does the auditory canal do
a long tube that carries sound to the ear drum
what makes up the middle ear
the eardrum, ossicles and oval window
what does the eardrum do
when the sound waves strike the eardrum it vibrates and passes the vibration to the first ossicle
what makes up the inner ear
cochlea and semi circular canals
what is the cochlea
Looks like a snail shell
Contains receptors for hearing and turns vibrations into nerve impulses (transduction) and sends them to the brain for processing
