Practice test 2 - Practice test #2 1) Which of the...

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Practice test #2 1) Which of the following is true of the relation between drug affinity and drug effects? A) A drug with high affinity for a receptor will exert an effect only at a very high dose. B) A drug with high affinity for a receptor will exert an effect at a low dose. C) A drug with a low affinity for a receptor will exert an effect only at a very low dose. D) Drug affinity does not relate to drug activity. 2) The recognition of auditory patterns is accomplished by A) circuits within the superior olivary complex. B) cells within the 8th cranial nerve. C) the inner hair cells. D) circuits within the auditory cortex. E) circuits within the medial geniculate thalamic nuclei. 3) A unique feature of the fovea is that it A) mediates vision in dim light. B) is devoid of photoreceptors. C) contains only cone photoreceptors. D) contains mostly rods. E) has very poor acuity. 4) Which drug below is useful for the treatment of opiate overdose because it blocks the opiate receptors? A) Methadone. B) Demerol. C) Heroin. D) Codeine. E) Naloxone. 6) The amount of light entering the eye is regulated by the size of the A) sclera. B) pupil. C) lens. D) optic orbits. E) conjunctiva. 7) Cells located within the cytochrome oxidase blobs of striate cortex play a key role in A) producing depth perception. B) pattern discrimination. C) color vision. D) line orientation. E) analyzing retinal disparity. 8) The pitch of a sound stimulus is related to the physical characteristic of A) frequency of vibration. B) the complexity of the sound waves. C) the amplitude of the vibration. D) the distance between the sound source and the detector. E) A and C are correct. 9) ________ is the synthesis precursor for dopamine. A) Epinephrine B) DBH C) Tryptophan
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D) Norepinephrine E) Tyrosine 10) Administering a molecule that is a precursor for the synthesis of a synaptic neurotransmitter would be expected to A) reduce the availability of that neurotransmitter. B) act as an antagonist at autoreceptors. C) alter the number of postsynaptic receptors. D) increase the rate of synthesis and release of that neurotransmitter. E) A and C are correct. 12) What is true about the release of norepinephrine (NE)? A) NE neurons send terminals to very few brain regions.
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This note was uploaded on 10/01/2008 for the course PSYCH 202 taught by Professor Kim during the Fall '06 term at University of Washington.

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Practice test 2 - Practice test #2 1) Which of the...

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