A. Muscarinic receptor В. Ach С. Nicotinicс receptor D. Adrenergic receptor E. NE F. Autonomic ganglion Sympathetic pathways use acetylcholine and norepinephrine. Parasympathetic pathways use acetylcholine. CNS ACh Target tissue

Sympathetic stimulation to lung tissue A. Causes activation of beta2 receptors which contract smooth muscles of airways. B. Causes activation of beta1 receptors which relax smooth muscles of airways C. Causes activation of beta2 receptors which relax smooth muscles of airways. D. Causes activation of beta1 receptors which contract smooth muscles of airways

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The tobacco industry takes full advantage of neurochemistry because nicotine is a highly addictive drug that increases dopamine release into the nucleus accumbens. What is the mechanisms by which this occurs?   A. There are nicotinic acetylcholine receptors on dopaminergic neurons in the ventral tegmental area   B. There are nicotinic acetylcholine receptors on presynaptic dopaminergic terminal buttons within the nucleus accumbens   C. There are nicotinic acetylcholine receptors on opiate neurons in the ventral tegmental area   D. nicotine stimulates dynorphin cells within the nucleus accumbens to increases dopamine release