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1. | The ____ receive messages from other neurons and send them to the cell body.
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| a) axon terminals
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| b) dendrites
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| c) neurotransmitters
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| d) myelin sheaths
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2. | Which statement about the functions of the nervous system is NOT TRUE?
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| a) A pupil dilating in bright light is an example of a response controlled by the autonomic nervous system.
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| b) The somatic nervous system controls such actions as your hand lifting a fork.
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| c) The sympathetic nervous system helps people cope during emergencies.
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| d) The parasympathetic nervous system prepares the body for strenuous activity by speeding up the heart.
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3. | In the brain, the ____ controls the functions of hunger, thirst, and sexual behavior.
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| a) thalamus
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| b) hypothalamus
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| c) cerebellum
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| d) cerebrum
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4. | Our higher thinking processes--those which make us unique--are housed in the ____.
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| a) hindbrain
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| b) midbrain
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| c) forebrain
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| d) lobes
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5. | Which statement about the functions of the brain is NOT TRUE?
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| a) The left hemisphere of the cortex controls the right side of the body.
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| b) A person who suffers stroke damage to the left side of the cortex may have difficulty speaking.
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| c) The limbic system, found in the forebrain, regulates emotions and motivations.
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| d) The two hemispheres of the cerebrum communicate through the pons.
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6. | Psychobiologists use all the following to study the brain EXCEPT ____.
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| a) EKG scans
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| b) PET scans
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| c) CAT scans
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| d) MRI scans
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7. | Which statement about the endocrine system is MOST ACCURATE?
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| a) Because they release hormones directly into the bloodstream, the sweat glands and tear glands are examples of ductless glands.
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| b) The endocrine system releases its hormones through small holes onto the surface of the body.
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| c) The pituitary gland secretes many hormones, and the hypothalamus monitors and corrects any imbalances.
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| d) The thyroid gland is called the "master gland" because it secretes a large number of hormones.
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8. | In males, the sex hormone ____ is responsible for the growth of male sex characteristics.
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| a) estrogen
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| b) progesterone
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| c) testosterone
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| d) testes
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9. | If identical twins that were raised in separate and very different households share the same talents and habits, then it probably means that ____.
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| a) genetics played an important role in their behaviors
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| b) environment played an important role in their behaviors
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| c) genetics did not play a role in their behaviors
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| d) environment did not play a role in their behaviors
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10. | Which statement about research on the effects of heredity and environment on behavior is MOST ACCURATE?
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| a) John Watson, who emphasized the importance of environment, proved that nurture is more important than nature.
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| b) In Hereditary Genius, Sir Francis Galton concluded that heredity and environment were jointly responsible for a person's success.
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| c) Current research supports the idea that behavior can be changed regardless of genetic tendencies.
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| d) Current research supports the idea that environment has little effect on changing behavior directed by genetic code.
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