SOLVED

191) Research on the sex hormones suggests that: A) the testes are the only sites for the production of androgens. B) estrogens and progesterone are produced only by females. C) estrogens appear to promote the formation of synapses in certain brain areas. D) fluctuating levels of estrogen and progesterone make women emotional before menstruation. 192) Oxytocin is secreted by the: A) endocrine gland. B) adrenal gland. C) pineal gland. D) pituitary gland. 193) Jeff is writing a term paper on the role of oxytocin. He decides to emphasize the important role that this hormone plays in regard to: A) daily biological rhythms and sleep. B) the response to drugs, such as caffeine and nicotine. C) childbirth and nursing. D) physical changes in girls at puberty. 194) Which of the following sex hormones contributes to the growth and maintenance of the uterine lining in preparation for a fertilized egg? A) estrogen B) progesterone C) testosterone D) oxytocin 195) An EEG, or brain-wave recording: A) reflects the activities of only a few cells at a time. B) is recorded by inserting needle electrodes into the brain. C) is useful and very precise. D) shows different activity associated with sleep, relaxation, and mental concentration. 196) Coin-shaped electrodes are pasted onto Miranda’s scalp and they are connected by wire to a machine that translates the electrical energy from her brain into wavy lines on a moving piece of paper. From this description, it is evident that Miranda’s brain is being studied through the use of: A) an electroencephalogram. B) functional magnetic resonance imaging. C) positron-emission tomography. D) a microelectrode recording. 197) When researchers use needle electrodes: A) general anesthesia is used because the brain is sensitive to pain. B) only the skull and the membranes covering the brain need to be anesthetized. C) a current is produced that is 40 000 times greater than Earth’s natural magnetic field. D) they inject a glucose-like substance containing a radioactive element. 198) A researcher is interested in studying the function of a particular region of the brain and decides to use the lesion method. This research is MOST likely to involve: A) animals B) children C) patients diagnosed with Alzheimer’s disease. D) humans 199) A researcher is interested in identifying the patterns of brain activity that occur while a participant reads. In order to do this the researcher is most likely to: A) make an EEG tracing of the brain while the participant reads. B) gather information from brain-damaged patients. C) produce a lesion in the part of the brain responsible for reading. D) electrically stimulate the brain. 200) A neurologist wants to confirm his patient’s diagnosis of epilepsy. To do this he needs to record the electrical activity of his patient’s brain. The best way for the neurologist to obtain this information would be to use: A) functional magnetic resonance imaging. B) transcranial magnetic stimulation. C) an electroencephalogram. D) positron emission tomography.