RECEPTORS

Interoceptors

collect information about the human body

Exteroceptors

Detect stimuli from the enviroment

Propioceptors

Are in the ear vestibules and musvles

Detect balance and position

Sense throught we detect light

Parts:

Cornea

Protect Iris and pupil

transparent

Iris:

Expand and contract pupil

Pupil

When light is bright:it contracts

when light is low:it expands

Retina

Acts as a mirror

Have:

Cones:Detect the amount of light

rodes:provide a detailed vision

Optical nerve

Transport Nerve impulse to the brain

Is the sense that humans use to detect sound

Parts:

Outer ear

Pinna

intercept sound waves

ear canal

Connect pinna with eardrum

Middle ear

Ear drum

vibrates with the sound

Ear bones

Malleus,incus and stapes

Vibrations pass throught them

Eustachian tube

Comunicates the inner ear with the nasal cavity

Inner ear

vestibular system

iIt occupies of the balance of the body

Cochlea

Its fluid recieve vibrations from the stapes, that makes that the cilia(the hair of the cells) vibrate sp the cells change that stimuli into nerve impulse

auditory nerve

transmit the nerve impulse to the brain

Let humans detect particles dissolved in the air

Olfactory mucosa

have chemoreceptors

transform chemical stimuli into nerve impulses

Olfactory bulb

collect the nerve impulse

send the nerve impulse to the olfactory nerve

Olfactory nerve

Transport tthe nerve impulse to the brain

Let humans detect certain substances dissolved in liquids found in the oral cavity

Tongue

Taste buds

Tiny bumps that cover the surface of the tongue

Two parts

Taste receptors

Have chemo receptors

detect substances disolved in the saliva/liquids

Transform the stimuli into nerve impulses

Nerve endngs

Take the nerve impulses of itstaste receptor

In skin

Free nerve endings

Detect pain

nocioreceptors

meissner's Corpuscle

Detect slight pressure changes

krause's corpuscle

detect decreases in the temperature

Ruffini's corpuscle

Detect increase in the temperature

pacinian corpuscle

detect noticeable pressure changes