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The Brain Answer Key

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Category 1
#1 After an accident, Elizabeth was left with brain damage. Now Elizabeth has trouble judging the emotions of others, even when she can see thie facial expressions. Elizabeth has most likely damaged her amygdala
#2 Tyler was injured when a rotary saw blade was accidentally used in a game of Frisbee golf. Tyler seemed all right, except for a large vertical cut throught the middle of his skull. However, when he was aksed to place his left hand into his left pocket and verbally describe the contents, he couldn't. Having taken introductory psychology, his friend Broderick deduced, 'Tyler's _____ must be cut.' corpus callosum
#3 Emily bent over in her garden to pick a squash but bumped her head on a fence post and passed out. When she came to, she could not let go of the squash in her left hand; the hand would not open or close. She most likely injured cells in her ______ lobe. right frontal
#4 Jacob suffers a stroke that destroys the connection between the reticular formation and the rest of his brain. Jacob will most likely be in a coma
#5 After an evil scientist destroys part of Cody's brain, Cody finds that he is constantly hungry and he eats much more than before. The scientist destroyed Cody's hypothalamus
Category 2
#1 Samm recently had a moderately severe stroke that has caused her to speak with a foreign accent. The part of the brain affected by her stroke was the association cortex
#2 A jeweler is repairing a gold chain with very tiny links. The jerewler's ______ would be very important in her ability to do the repair. cerebellum
#3 If you were to prick yourself with apin in the following sets of locations, which would cause neural firing closest together in your somatosensory cortex? hand and forearm
#4 Mitch was in an automobile accident and can no longer control his own heart rate or breathing. Mitch most likely has damage to his medulla
#5 Playing piano, speaking and threading a needle all require precise control over the sequencing and timing of movements. Therefore, all of these activities probably involve the _______. cerebellum
Category 3
#1 When Cassidy was tackled during a football game, she hit the back of her head on the turf, which resulted in a concussion. Cassidy now has trouble with her vision. Cassidy most likely injured her _____ lobe. occipital
#2 Olivia's hypothalamus was injured in an accident. Olivia will have trouble regulating all of the following except her: Choose from sex drive, weight, breathing, biological rhythms breathing
#3 Melissa is gradually developing an impairment in her ability to perform finely coordinated movements, such as cutting a clove of garlic into very small pieces. Doctors will probably discover a problem in her cerebellum
#4 Damage to which part of the brain would have the least effect on a person's ability to juggle: Choose from cerebellum, substantia nigra, striatum, hippocampus hippocampus
#5 A neurologist is examining a patient and asks him, 'What sound does a lion make?' The patient replies, 'lion... he roar.' What region of the patient's brain is most likely damaged? Broca's area
Category 4
#1 The right hemisphere gets information from the _______ side of the body and has better spatial abilities than the left hemisphere left
#2 Recent animal studies have shown that removal of the hippocampus several days after a mildly painful experience will not erase the memory of the experience. Why? Hippocampus is used during short term memory and helps to process long term memories but does not store long term memories
#3 Tera and Haley have very different sleeping patterns. Haley always wakes up early in the morning, but she starts to get tired early in the evening. Tera, on the other hand, prefers to stay up late and then sleep until noon. Tera and Haley's different sleeping preferences are most likely due to their suprachiasmatic nuclei
#4 Krista keeps falling asleep at odd times. She is having trouble with arousal and attention. Her doctors have ruled out sleep disorders and are now concentrating on certain brain structures. The one that is most likely malfunctioning is the reticular formation
#5 _______ play a caretaking function, cleaning up after brain damage. Glial Cells
Category 5
#1 After a stroke, Sierra has great difficulty with speech. Words come slowly and haltingly, and her speech is often grammatically incorrect. The stroke probably damaged Broca's Area
#2 Suppose you fall asleep on your arm in such a way that the blood flow to that arm is blocked. Which brain structure might wake you up and alert you to move your arm before it stops receiving blood? reticular formation
#3 Broderick is learning to play the guitar. Recent research suggests that the organization of Broderick's somatosensory cortex may change to allow more of the neurons there to respond to touch. Which lobe of Broderick's cerebral cortex contains the somatosensory cortex? Parietal
#4 Melissa has a subject in a study in chich the glucose in her brain was marked with a radioactive substance. Then radiation detectors identified especially active brain areas. Melissa participated in a study that employed what type of scan? Positron Emission Tomography or PET
#5 Tera is horseback riding when she falls and hits her head. After the accident, she has difficulty performing finely coordinated movements. Tera has most likely damaged her cerebellum
Final Question
If a scientist implanted some cells into an adult patient's brain and this caused stimulation and growth of axons, thus reversing brain damage, you could assume that the implanted cells produced nerve growth factor