If the orientation of your ears were changed so that your right ear still faced forward but your left ear faced backward, how would your ability to locate the direction of an auditory stimulus change?
A) Improved ability to distinguish left from right
B) Improved ability to distinguish above from below
C) Improved ability to distinguish front from back
D) There would be no improved ability at all.
Answer: C
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A) reticular formation B) limbic system C) thalamus D) pyramids
Binding of an excitatory neurotransmitter to a postsynaptic neuron causes
a. voltage-gated Na+ channels open b. voltage-gated K+ channels open c. chemically-gated Na+ channels open d. voltage-gated Cl- channels open e. chemically-gated Cl- channels open
Which of the following structures is continuous with the inner lining of blood vessels?
a. the pectinate muscles b. the pericardial sac c. the epicardium d. the endocardium
The life span of an erythrocyte is about ________ days.
A. 60 B. 120 C. 30 D. 10 E. 360