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Bio 210: Chapter 16 Questions & Answers
Chapter 16 Questions & Answers
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Biology
12/06/2010

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Term
Hot and cold stimuli are detected by
Definition
free nerve endings
Term
_____ is a neurotransmitter that transmits pain sensations to second-order spinal neurons.
Definition
substance P
Term
_____ is a neuromodulator that blocks the conduction of pain signals by second-order spinal neurons.
Definition
Enkephalin
Term
Most taste buds occur in
Definition
the vallate papillae
Term
The higher the frequency of a sound,
Definition
the higher its pitch
Term
Cochlear hair cells rest on
Definition
the basilar membrane
Term
The color of light is determined by
Definition
its wavelength
Term
The retina receives its oxygen supply from
Definition
the choroid
Term
Which of the following statements about photopic vision is false?
Definition
It has a low threshold
Term
The most finely detailed vision occurs when an image falls on a pit in the retina called the _____
Definition
fovea centralis
Term
The only cells of the retina that generate action potentials are the _____ cells.
Definition
ganglion
Term
The visual pigment of a cone cell is
Definition
photopsin
Term
The gelatinous membranes of the macula sacculi and macula utriculi are weighted by calcium carbonate and protein granules called _____
Definition
otoliths
Term
The _____ is a tiny bone that vibrates in the oval window and thereby transfers sound fibrations to the inner ear.
Definition
stapes
Term
The function of the _____ in a taste bud is to replace dead taste cells.
Definition
basal cells
Term
Olfactory neurons synapse with mitral cells and tufted cells in the _____ which lies inferior to the frontal lobe.
Definition
olfactory bulb
Term
In the phenomenon of _____ pain from the viscera is perceived as coming from an area of the skin.
Definition
referred pain