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25 Cards in this Set

  • Front
  • Back
a cell specialized for detecting some type of information
Receptor
3 types of receptors
1. Chemical
2. Visual
3. Mechanical
Sweet, Sour, Salt, Bitter, Umami
Taste Receptors
a taste of glutamic acid, a natural amino acid associated with protein rich foods
umami
a seasoning that gives the same umami taste. it has no smell or texture. enhances original flavor of food
Monosodium glutamate (MSG)
not an inherent property of the stimulus but are present exclusively in the nervous system itself
Sensations
sense of smell
olfactory receptors
our sense of taste and smell are controlled by ?
chemical receptors
type of eyes found in arthropods (insects). each consists of olmatilda. very sensitive to movements
Compound eyes
found in vertebrates. consists of a single lens that focuses a single image on an array of receptor cells. records only a small part of the total image
camera type eyes
white outer tough layer, surrounds entire eyeball for protection
sclera
transparent part of the sclera. allows light to pass through
cornea
contains blood vessels to supply eye cells with oxygen and nutrients
choroid
opening or aperture of the eye. the size of the aperture is regulated by the iris
pupil
pigmented part of the eye that gives people their eye color. composed of smooth muscle and controlled by reflex
iris
adjusts the focus for far and near objects and forms a single image on the inside back of the eye. consists of living cells
lens
control the thickness of the lends to alter its focus
ciliary muscles
thin lens is for ___ focusing
normal, distance
rounder, thicker lens is for ____ focusing
near
process of the lens becoming rounder is called
accomodation
image is projected upside down on the ____.
retina
transparent gel that fills the eyeball. inside the eye
vitreous humor
light image is focused on the ___. contains photosensitive receptor cells
retina
receptors are located ____ the sensory neurons
behind
only about ___% of the light that enters the eye actually gets through to hit the receptors
10