1.	The mechanism by which a receptor converts a stimulus into an electrical signal is called

A.	conduction

B.	convection

C.	transduction

D.	modulation

E.	propagation

2.	Which of the following best illustrates the concept of an adequate stimulus?

A.	When a boxer gets punched in the eye, he perceives light

B.	Rotation of the head stimulates certain receptors in the vestibular system but not those in the visual system

C.	Information from different photoreceptors converges on a single ganglion cell that projects to the lateral geniculate nucleus.

D.	hair cells in the cochlea are stimulated by sound vibrations over a wide range of frequencies

3.	The ability to perceive different frequencies in sound vibrations is based on the fact that

A.	the stereocilia of any given hair cell respond to one frequency only

B.	different areas of the basilar membrane resonate at different frequencies such that a sound of a particular frequency causes only a certain region of the membrane to vibrate

C.	the frequency of action potentials in the cochlear nerve varies in proportion to the frequency of a sound stimulus

4.	The stereocilia for hearing are exposed to

A.	Endolymph in the vestibular duct

B.	perilymph in the vestibular duct

C.	endolymph in the cochlear duct

D.	perilymph in the cochlear duct

E.	endolymph in the tympanic duct

5.	The parasympathetic nervous system causes

A.	contraction of the radial muscle of the iris

B.	contraction of the ciliary muscle

C.	pupillary dialation

D.

a and c

E.	all of the above

6.	The Two types of thermoreceptors are ___________ and _________.

7.	Receptors are most sensitive to energy from the _________ stimulus.

8.	A phasic receptor adapts (quickly/ slowly) to a constant stimulus

9.	The three types of nociceptors are __________, _________, and __________.

10.	Information about touch detected on the left side of the body is transmitted to the brain in the dorsal columns on the _________ side of the spinal cord.

11.	The first neurons that support production of action potentials in the visual pathway are (photoreceptors/ biopolar cells/ ganglion cells).

12.	The pitch of sound vibration reflects its (amplitutde/ frequency)

13.	A hair cell in the cochlea can be excited by sounds of different frequencies (true / false).

14.	The process by which the lens becomes stronger for close-up vision is called ____________.

15.	Rods and Cones differ with regard to the type of (retinal / opsin) they contain.

16.	A single ganglion cell will either be excited or inhibited by light applied to its visual field (True / false).

17.	Odorant molecules must be dissolved in mucus if they are to bind to olfactory receptors (True / False).

18.	A given taste receptor cell responds to only one of the four primary tastes (true / false).