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D every nerve in the body. Endocrine glands do NOT include: A the pituitary gland. B tear glands. C the pancreas. D the thyroid gland. George's pupils are dilated and his heart rate is speeding up.
The part of the nervous system responsible for these changes is the nervous system. A somatic B central C sympathetic D parasympathetic 8. In the Schachter-Singer two-factor theory of emotion: A the emotional feeling precedes the physiological arousal. B the physiological arousal and emotion feeling occur simultaneously.
C a cognitive appraisal of the situation allows us to identify the emotion. D each emotion produces a distinctly different pattern of physiological arousal. The , a brain stem structure, is involved in regulating body functions needed for survival, such as breathing and heartbeat.
A amygdala B medulla C thalamus D cerebellum A The limbic system plays an important role in survival, memory, and emotion. B The limbic system is comprised of the hippocampus, hypothalamus, and amygdala. C The limbic system is where higher-level cognitive processes occur. D The limbic system surrounds the top of the brain stem. A the brain stem B the cerebral cortex C the cerebellum D the limbic system The A B C D cortex in the lobe allows us to move different parts of our body.
People with damage to Broca's area have problems: A understanding speech. B singing. C reading silently. D speaking fluently. Split-brain patients: A have a dominant left hemisphere. B can orally identify information presented in their left visual field. C have a severed corpus callosum. D only use the right hemisphere. The right hemisphere processes information from the: A left eye.
B left half of each eye. C right visual field. D left visual field. Answer Key 1. In what way is a neuron like a miniature decision-making device? A It decides whether or not to accept incoming messages from other neurons. B It decides whether or not to manufacture neurotransmitters.
C It decides whether or not to fire an impulse.
D It decides how fast an impulse should travel down the axon. Why do neural impulses travel faster in myelinated axons than in unmyelinated axons? A Myelin is a better conductor of electricity than other material in the axon. B The impulse leaps from gap to gap in the myelin sheath, rather than traveling continuously down the axon.
C Myelin prevents other substances from interfering with the impulse. D Unmyelinated axons are less developed than myelinated axons. Treating Parkinson's disease with L-dopa may lead to an increase in: A the ability of dopamine to cross the blood-brain barrier. B the amount of dopamine in the brain. C schizophrenia-like symptoms. D both the amount of dopamine in the brain and schizophrenia-like symptoms. Why are drugs that block the reuptake of neurotransmitters considered agonists?
A They keep neurotransmitters active in the synaptic gap. B They increase the production of neurotransmitters. C They attach to the receptor cells in the receiving neuron to transmit messages. D They encourage continuous release of neurotransmitters from the axon terminal.
Treating schizophrenia with antipsychotic drugs can lead to side effects that resemble Parkinson's disease because these drugs: A increase levels of dopamine activity. B decrease levels of dopamine activity. C destroy dopamine neurons in the brain. D destroy dopamine receptors in the brain. Sensory and motor neurons are located nervous system s and interneurons are located nervous system.
A in both the central and peripheral; only in the central B in both the central and peripheral; only in the peripheral C only in the central; only in the peripheral D only in the peripheral; only in the central Page 1 7. A The two systems are connected to different glands and organs, thus explaining their dissimilar effects.
D Both systems are part of the peripheral nervous system. A into the bloodstream; quickly B into the bloodstream; slowly C directly to their target sites; quickly D directly to their target sites; slowly than A It is located near the very top of the brain. B It controls the functioning of the somatic nervous system.
C It releases hormones that direct other endocrine glands to release their hormones. D All of the answers are correct.
According to the James—Lange theory of emotion, emotion occurs autonomic arousal and the behavioral response. According to the Cannon—Bard theory of emotion, emotion occurs autonomic arousal and the behavioral response. A before; after B after; before C before; at the same time as D after; at the same time as Page 2 When you feel a slap on the left cheek of your face, the of the hemisphere is active. A motor; frontal; right B somatosensory; parietal; right C motor; frontal; left D somatosensory; parietal; left cortex in the lobe Sheila was in an accident in which she received damage to her cerebellum.
B playing soccer. C storing information in short-term memory. D transferring information from short-term memory to long-term memory.
When you repeat aloud what someone else is saying, which choice accurately depicts the sequence of brain activity from the time you comprehend the words until the time you prepare to pronounce the words? A Wernicke's area in the temporal lobe, Broca's area in the frontal lobe B Broca's area in the frontal lobe, Wernicke's area in the temporal lobe C Wernicke's area in the frontal lobe, Broca's area in the temporal lobe D Broca's area in the temporal lobe, Wernicke's area in the frontal lobe In laboratory testing of a split-brain patient, suppose a picture of a baseball is flashed only to the patient's left visual field.
How would the split-brain patient be able to identify the baseball? Why is REM sleep sometimes referred to as paradoxical sleep? A Brain waves are very slow, even if a person is dreaming about activity. B Body muscles are relaxed and immobilized, but the brain is active. C Sleepwalking may occur, but memory is not active enough to recall it.
D Eyes are still, but people feel as if they are watching events in a dream. Page 3 Answer Key 1. The human brain is estimated to consist of approximately A million B million C billion D billion 2. The A B C D nerve cells neurons. A neurons; glial cells B glial cells; neurons C glial cells; glial cells D neurons; neurons 4. Recent research indicates that the ratio of glial cells to neurons is approximately: A B C D A Glial cells communicate with other glial cells.
B Glial cells release neurotransmitters. C Glial cells strengthen and weaken neuronal connections. D Glial cells insulate neurons and remove the waste products of neurons. Which part of the neuron looks like the branches of a tree? A the axon B the cell body C the dendrites D the myelin sheath Page 1 7. The neuronal structure responsible for receiving information from other neurons is the: A axon. B axon terminal. C dendrite. D cell body. The process of neural transmission within a neuron begins at the.
A cell body; axon B axon terminals; cell body C cell body; dendrites D dendrites; axon terminals and ends at the Starting with incoming information, which ordering describes the sequence of neuronal transmission? A dendrites cell body axon axon terminal B dendrites axon terminal axon cell body C axon axon terminal cell body dendrite D axon terminal axon cell body dendrite The long, singular fiber leaving the cell body is the: A dendrite.
B axon. C glial cell. D axon terminal. Which part of the neuron decides whether or not information should be passed on to other neurons? A the axon B the cell body C the dendrites D the axon terminals Page 2 The A B C D contain s the nucleus of the neuron. In which instances will the cell body generate an impulse? A Excitatory input and inhibitory input are equal.
B Inhibitory input outweighs excitatory input by a certain amount. C Excitatory input outweighs inhibitory input by a certain amount. D The cell body will generate an impulse if excitatory input and inhibitory input are equal or if excitatory input outweighs inhibitory input by a certain amount.
For any particular neuron, an "all-or-nothing" event refers to the fact that all: A impulses travel at the same speed, no matter how intense a stimulus is. B dendrites must receive input or the axon will not transmit an impulse. C axon terminals pass on information, or none do. D input must be excitatory or no information will travel down the axon.
We are able to interpret varying intensities of stimuli e. B special neurons send messages more intensely. C neurons send messages more frequently when we receive more intense stimuli. D each neuron sends a different type of signal. When Cheyanne sees a bright light compared with a dim light: A more neurons generate impulses with no change in rate.
B more neurons generate impulses with an increase in rate. C the same number of neurons generates impulses with an increase in rate. D the impulse travels down the axon faster. Page 3 Which statement about the speed of neural impulses is TRUE?
A Impulses in all neurons travel at the same speed. B Impulses can travel as fast as miles per hour. C Impulses travel slower if an axon is encased in myelin. D Impulses travel faster if the intensity of the stimulus is strong. Compared with the impulses generated by a whisper, a loud scream will cause: A impulses to travel faster down axons. B fewer neurons to generate impulses. C more neurons to generate impulses more often. D a single neuron to send a bigger impulse. The A B C D is an insulating layer of a white fatty substance.
The myelin sheath the neural impulse because. A speeds up; the axon becomes narrower B speeds up; the impulse "leaps" from one gap in the sheath to another C slows down; the axon becomes wider D slows down; the impulse is partially blocked by the myelin As a victim of multiple sclerosis, Mrs.
Samuels is suffering from deterioration of leading to an obvious difficulty in. A dendrites; hearing B dendrites; moving C the myelin sheath; hearing D the myelin sheath; moving , The destruction of the myelin sheath results in movement difficulties for sufferers of multiple sclerosis because: A unmyelinated axons transmit neural messages erratically, greatly slowing movement.
B cell bodies cannot respond to dendritic messages when axons are unmyelinated. C the transmission of the neural impulses is greatly slowed when myelin deteriorates. D the all-or-nothing event is stopped when axons are unmyelinated. Page 4 White matter in the brain is composed of: A myelinated axons. B unmyelinated axons.
C myelinated dendrites. D unmyelinated dendrites. The outside layer of our cerebral hemispheres appears gray because it is composed of billions of: A neurotransmitters. B cell bodies and dendrites. C dendrites and glial cells. D myelinated axons. White matter is composed of ; gray matter is composed of A myelinated axons; cell bodies and dendrites B cell bodies and dendrites; myelinated axons C dendrites; cell bodies and myelinated axons D cell bodies and myelinated axons; dendrites.
What happens when the impulse reaches the axon terminals?
A The impulse reverses direction and travels back to the cell body. B The vesicles in the axon terminals fuse together. C The vesicles in the axon terminals open and neurotransmitters enter the synaptic gap.
D The vesicles absorb neurotransmitters. After carrying their message across the synapse to the receptor sites, neurotransmitters: A may be consumed by the brain for energy. B may be destroyed in the synaptic gap by enzymes. C may travel through the receptor sites into the next neuron. D None of the answers is correct. A They may be destroyed by enzymes.
B They may be taken back into the axon terminals of the sending neuron for reuse. C They may be destroyed by enzymes or taken back into the axon terminals of the sending neuron for reuse.