Chapter 9 questions Flashcards
Cats are not sensitive to ____ tastes.
sweet
Functional MRI studies have revealed that the presence of odorants is especially associated with activation of
The prepyriform cortex and the orbitofrontal cortex
Neighboring stereocilia are joined by…
tip links
The vestibular system is believed to have evolved from the ____ system.
Lateral line
The average hearing range of humans is…
20 to 20,000 Hz
On average, people with 96 taste buds/square cm of the tongue tip are…
nontasters
A sound of a jetliner 500 feet overhead is about _______ dB above the threshold of hearing of an average person.
120
The muscles of the middle ear are activated by sounds that are about _______ dB above a person’s hearing threshold.
80 to 90
How many cranial nerves report olfactory information to the brain?
one
Within the nucleus laminaris of birds, bineural cells act as _______ to detect the location of sound in space
coincidence detectors
New olfactory receptor cells are formed from…
basal cells
Several regions of the suditory cortex show ____ mapping.
tonotopic
The____ are usually the initial site of damage in noise-induced deafness.
hair cells
Mice are believed to have about _______ glomeruli, each of which receives input from one of only four receptor protein families.
150
Using binaural detection, people can localize the source of a sound to within about _______ degree(s).
1
