Biological Psychology Test Already Passed

The primary effect of the myelin sheath is to A increase the velocity of conduction of the action potential along the axon B increase the velocity of conduction of the action potential across the synapse C facilitate the incoming stimulus signals at sensory receptors D reduce the amount of unused neurotransmitter in the synaptic cleft E protect the terminal buttons of the neuron from destruction by enzymes {Ans: A}Which of the following neurotransmitters has been most associated with major depressive disorder? A Acetylcholine B Dopamine C Histamine D Serotonin E Gamma-aminobutyric acid (GABA) {Ans: D}Cocaine blocks the reuptake of which neurotransmitter? A Epinephrine B Endorphins C Gamma-aminobutyric acid (GABA) D Substance P E Dopamine {Ans: E}The parasympathetic nervous system: * 1/1 A) stimulates digestion and slows heartbeat. B) inhibits digestion and accelerates heartbeat. C) stimulates digestion and accelerates heartbeat. D) inhibits digestion and slows heartbeat. E) stimulates digestion and increases respiration {Ans: A}The peripheral nervous system consists of: * 1/1 A) association areas B) the spinal cord C) the reticular formation D) sensory and motor neurons E) the brain {Ans: D}Sensory neurons are located in the: * 1/1 A) thalamus B) reticular formation C) peripheral