textbook chapter 16

what is the area within which a sensory neuron detects stimuli

receptive field

what term describes a single touch sensory unit that can cover a large area of skin

receptor

what term describes the neuron stimulated anywhere within its receptive field

single

why can’t the brain determine the exact location of stimulation within a receptive field 

because the field is activated, not a specific point

what term describes how touches at two places in a field can feel like one

two

is smell a chemical sense

true

what must odorant molecules do before stimulating receptors

dissolve in mucus

can humans only detect up to 200 odors

false- humans can detect thousands

what do olfactory receptors have on their apical surface

hairs (cilia)

is the response from olfactory receptors called gustation

false- gustation refers to taste

what type of receptor is involves in olfaction

chemoreceptor

where is the primary olfactory cortex located

temporal lobe

does the vestibule contain organs of hearing and equilibrium

false- only equilibrium

what is the correct pathway for sound waves to reach the brain 

auditory canal → tympanic membrane → ossicles → oval window → cochlear duct → spiral organ → cochlear never 

what senses vertical motion in an elevator

hair cells of the otolithic membrane of the macula sacculi

what differentiates the three types of cones

absorption peak

what is the wavelength range of human vision

400 to 700 nm

what is NOT an optical component of the eye 

retina 

do divergent sensory pathways explain referred pain 

true 

what detects changes in cerebrospinal fluid pH

chemoreceptors

why don’t sound waves trigger olfaction

modality mismatch

how are harmful substances typically perceived

unpleasant

what does a human’s inability to detect odors that dogs can suggest

insufficient intensity

why do strong chemical smells become imperceptible over time

sensory adaptation of phasic receptors