Senses
uses mechanoreceptors to detect pressure and location
Touch
what type of receptor does sound use?
mechanoreceptor
what "structure" allows light to pass through the eye?
pupil
Why do we have a blind spot? (specifically)
Optic disc, where optic nerve exits the eye. no rods or cones in that area!
what connects the ear and throat to relieve pressure?
eustachian tube
uses olfactory epithelium to detect chemicals
Smell
how many parts is the ear divided into?
3
what is the tough outer fibrous layer of the eye called?
sclera
Semicircular canals are oriented in what plane(s)
X,Y and Z
While both clear, the ___________ Humor is more gel like and in the eyeball, and the _______________ Humor is more watery and underneath the Cornea.
Vitreous; Aqueous
Gustatory receptor cells inside of papillae provide us with this sense
Taste
what structures in the ear are in charge of equilibrium
vestibule, semicircular canals
a colorblind person lacks which sight receptor?
cones
what senses use sensory epithelium?
Smell, Taste
What does "auditory ossicles" mean and what are they?
"hearing bones"
malleus (hammer), incus (anvil), and stapes (stirrup)
Rods and cones send information to the brain to provide this sense
Sight
what type of cells vibrate at different frequencies to stimulate the organ of corti and aid with equillibrium?
Hair cells
made of smooth muscle. controls the amount of light that enters the eye
Iris
What type of receptors are are Merkel discs and ruffini endings?
mechanoreceptors
What are the sense organs in the body?
Eyes, ears
Mechanoreceptors convert vibrations into action potentials
Hearing
what is the name of the opening in the skull that the external auditory canal passes through?
External auditory meatus
Area on the back of the eyeball that provides sharpest and clearest vision.
Fovea centralis
What percentage of all of our sensory receptors are in our eyes?
~70%
convert light energy 🡪 electrical energy or Action Potenials
photoreceptors