sensory processes Flashcards
means by which nervous system recieves information from internal environment
interoreception
means by which nervous system recieves information from external environment
exteroreception
means by which the nervous system recieves information from the position and movement of the body
proprioreception
conscious preception of sensory stimuli and generally involves the cerebral cortex
sensation
receptors that receive sensory information and convert to electrical activity
transduction
what two things could communicate with the afferent neuron in sensory receptors
dendrite or a scpecialized cell (vision, hearing, etc.)
if membrane channels are opened, resluting in in changes in membrane potential
ionotropic
if g-coupled protein receptors interact with the stimuli to trigger a secondary messenger cascade
metabotropic
receptors that are at the ends of afferent neurons
touch receptors
touch receptors that stretch activated channels
ionotropic
4 types of nerve endings
merkel disks: form and texture (shallow)
ruffini ending: pressure (deep)
meissner’s corpuscle: sensitive touch (shallow)
pascinian corpuscle: pressure (deep)
another word for taste
gustation
taste receptors
taste cells clustered to form buds
5 taste sensations
bitter salty sweet sour bitter umami
salty and sour: ionotropic or metabotropic
ionotropic
sweet, bitter, umami: ionotropic or metabotropic
metabotropic
allows animal to distinguish between many different tastes
simultaneous olfaction
another word for smell
olfaction
true or false: particles must be dissolved in the mucus to interact with the receptors
true
hearing: basilar membrane vibration pushes ____ cells onto ____ membrane
hair, tectorial
what controls the light entering the eye
iris/pupil
what focuses light/image on the retina
cornea and lens
photoreceptors that respond to light are called
rods and cones
what do bipolar and ganglionic cells do
conduct signals
what do horizontal and Amacrine cells in the eye do
visual integration
part of the brain where the optic nerves from each eye cross
optic chiasm
nerves from lateral side of each eye go to ___ side(s) of brain
same
nerves from medial side of each eye go to ____ side(s) of brain
opposite
part of environment from where light can enter the eye
visual field
type of vision that allows for depth perception
binocular vision
predators have ____ vision, whereas prey have ____ vision.
binocular, monocular
