Sense organ review
what is the proper scientific name for each of the following -earwax -eardrum -auditory canal -hammer -anvil -stirrup -auditory tube - hearing sense organ -balance sense organ -visible outer ear
- Cerumen - Tympanic membrane - External acoustic meatus - Malleus - Incus - Stapes - Eustachian - Inner ear - Vestibular, semicircular canal - Pinnal auricle
* need to know the areas of sensitivity on the tongue*
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how many of the chemoreceptors involved in smell does a person lose each year
1
at what range of vibrations per second is human hearing the most sensitive
2k3,000
at what temperature extremes does your body activate pain receptors
45° C
what is a sensation
A feeling that occurs when sensory impulses are sent to the brain
what specific type of nerve tissue does not contain pain receptors
The brain
why are otitis media or mastoiditis commonly produced by a sore throat
all the parts are connected
what portion of the eye is malfunctioning in glaucoma
aqueous humor
Name the two fluids that are inside the eye
aqueous, vitreous
how are the chemicals we taste placed in solution so that our chemoreceptors can detect them
by saliva
what are the seven primary odors
camphoraceous, musky, floral, pepperminty, ethereal, pungent, putrid
in what type of situations might the threshold of pain receptors to be lowered
chemical accumulate
name the five groups of sensory receptors
chemoreceptors, painreceptors, thermoreceptors, mechanoreceptor, photoreceptors
name the part of the eye that is responsible for contracting and relaxing in order to shape the lens
ciliary muscles
name the three parts of the inner ear
cochlea, vestibule, semi-circular canals
what is the difference between conductive deafness and sensorineural deafness
conductive- loss caused by simple plugging of external auditory meatus sensorineural- loss caused by excessively loud sounds
name the part of the eye that is important in seeing colors
cones
name the part of the eye that is the translucent area of the eye which allows light to pass through
cornea
what portion of the eye is malfunctioning in conjunctivitis
cornea
what portion of the eye is malfunctioning in astigmatism
cornea of the lens
name three physical changes which can cause the sensation of a headache
dilation of cranial blood vessels, retention of fluid in the tissue, and muscle spasms of the neck, face, and scalp
what is the scientific name for the sense of taste
gustation
explain the most common form of mechanoreceptor
hair cells
what are the two functions of the ear
hearing and balance
what portion of your ear helps to equalize pressure between your inner ear and your throat
inner ear
explain what projection is and why is important
it allows a person to pinpoint exactly where the stimulation is coming from
explain what is meant when it is stated that sense organs actors transducers
it means they transform energy into another form
name the part of the eye that forms the colored portion of the eye
lens
what portion of the eye is malfunctioning in presbyopia
lens
where are the chemoreceptors involved in smell found
liquids c
What is anosmia?
loss of smell
name the three major sections of the ear
middle, inner, outer
name the 5 most familiar sense organs
mouth, ears, nose, eyes, and skin
name the two kinds of stretch receptors
muscle spindle, golgitendon organ
what portion of the brain is responsible for receiving impulses for sight
occipital
what is the proper scientific name for the sense of smell
olfaction
name several ways in which your eye is protected
orbit cushions eyeball, eyelashes in eyelids, mucous and teas
what is referred pain? Give an example
pain coming from a different area; pancreas= in between shoulder blades
what is the only type of receptors in visceral organs which producing sensations when stimulated
pain receptors
what type of sensory receptors adapt VERY LITTLE
pain receptors
what are the visible bumps on your tongue called
papillae
what portion of the brain is responsible for receiving impulses for smell
parietal
what portion of the brain is responsible for receiving impulses for taste
parietal
name the part of the eye that is the hole in the center of the eye
pupil
what portion of the eye is malfunctioning in cataracts
retina
name the part of the eye that is important in seeing at night
rods
name the part of the eye that forms the white of the eye
sclera
name the three layers of the wall of the eye from the outside to inside
sclera, uveal, retina
when sensory receptors are subjected to continuous stimulation, what is the name of the adjustment that many of these receptors may undergo?
sensory adaptation
name the three types of receptors which are utilized in touch and pressure sensors. Give an example of where they may be found
sensory nerve fibers - epithelial tissue meissoer's corpuscles- hairless portion of skin pacinian corpuscles- subcutaneous tissue
name the two types of thermoreceptors
signal warm/ cooling
what are the 3 groups of somatic senses
skin, muscles, joints, visceral organs
what are the four primary taste sensations
sour, sweet, salty, and bitter
how are sensory receptors classified
stimuli that activates them
why do we not lose much of our sense of taste as we age
taste cells are constantly reproduced
what portion of the brain is responsible for receiving impulses for hearing
temporal
why are pain receptors thought to be protective in nature
they adapt very little
why are chemoreceptors involved in smell subject to damage
they are chemical and enter as gases
how are the chemicals we smell placed in solution so that are chemoreceptors can detect them
three different nerves
what is the function of a stretch receptor
to provide information to the spinal cord and brain; length and tension of muscles
where are taste buds located
tongue surface
what two test can be used to diagnose conductive deafness
webber, rinne
explain how eye color is produced in the human eye
when melanin is present the eye can be green or brown but without, the eye appears blue
