Neurons, Synapses, and Behavior Quiz, Quizzes of Introduction to Psychology

Download Neurons, Synapses, and Behavior Quiz and more Quizzes Introduction to Psychology in PDF only on Docsity! QUIZ Topic: Neurons, Synapses, and Behavior 1. Compared to other cells of the body, neurons vary more widely in which of these aspects? a. Acid – to – base ration b. Color c. Chromosomes d. Shape 2. What is meant by the “all-or-none” law of the axon? a. Either the axon produces an action potential, or it doesn’t. b. When one axon produces an action potential, all of them do. c. All axons throughout the nervous system produce action potentials of equal strength. d. Incoming input must excite all the dendrites, or the axon won’t produce an action potential. 3. What is an action potential? a. An impulse that flows down an axon by electrical conduction b. An impulse that flows down an axon by movement of chemical ions c. A decision someone makes to start doing something d. A machine that measure brain activity 4. When a neurotransmitter excites the postsynaptic neuron, how long do the effects last? a. Just milliseconds b. About a tenth of a second c. Several seconds or longer d. The results vary from one synapse to another 5. Which of the following is true of receptors for neurotransmitters? a. All neurotransmitters attach to the same type of receptor b. Excitatory transmitters attach to one type of receptor, and inhibitory transmitters use another. c. Each neurotransmitter has its own receptor. d. Each neurotransmitter can attach to several types of receptors with different properties. Answers: 1. D; 2. A; 3. B; 4. D; 5. D 6. Some people with schizophrenia take haloperidol, a drug that blocks dopamine synapses. How would haloperidol affect someone with Parkinson’s disease? Answer: Haloperidol would increase the severity of Parkinson’s Disease. In fact, large doses of haloperidol induce symptoms of Parkinson’s disease in anyone.