Multiple Choice Quiz


1	The part of the neuron that receives messages from other neurons is called the
		A)	dendrite
		B)	axon
		C)	cell body
		D)	synapse


2	The part of the axon responsible for transmitting messages to the next neuron is the
		A)	dendrite
		B)	myelin sheath
		C)	cell body
		D)	axon


3	When positively charged ions enter the neuron, the process is called
		A)	polarization
		B)	depolarization
		C)	semipermeability
		D)	synaptical transmission


4	A "flowing storm of ions" characterizes
		A)	synaptic transmission
		B)	neural transmission
		C)	neurotransmitters
		D)	none of the above


5	Which of the following chemical substances makes it difficult for messages to be transmitted across synapses?
		A)	excitatory neurotransmitters
		B)	inhibitory neurotransmitters
		C)	regulatory neurotransmitters
		D)	all of the above


6	Which of the following transmit messages from the body into the nervous system?
		A)	afferent neurons
		B)	efferent neurons
		C)	association neurons
		D)	transmittal neurons


7	The central nervous system is the primary location of
		A)	efferent neurons
		B)	afferent neurons
		C)	interneurons
		D)	nerves


8	Which division of the nervous system is composed of all the nerves that branch from the brain and spinal cord?
		A)	peripheral nervous system
		B)	afferent nervous system
		C)	central nervous system
		D)	somatic nervous system


9	All of the following are functions of the autonomic nervous system except
		A)	breathing
		B)	voluntary movements
		C)	sweating
		D)	sexual arousal


10	Activation of the internal organs is carried out by the
		A)	sympathetic nervous system
		B)	parasympathetic nervous system
		C)	somatic nervous system
		D)	all of the above


11	For what purpose are PET scans and MRI used?
		A)	observing the process of depolarization
		B)	observing images of the brain
		C)	measuring the responsiveness of the autonomic nervous system
		D)	measuring the sensitivity of the skin's pain receptors


12	The hindbrain structure responsible for maintaining muscle tone and coordination of muscle movements is the
		A)	medulla
		B)	pons
		C)	cerebellum
		D)	thalamus


13	The hypothalamus is located within the
		A)	midbrain
		B)	thalamus
		C)	medulla
		D)	forebrain


14	A small area at the top of the hindbrain that helps regulate sensory reflexes is called the
		A)	medulla
		B)	pons
		C)	forebrain
		D)	midbrain


15	If a person's cerebellum was damaged in an accident, you would expect the person to have a problem with
		A)	breathing and heart rate
		B)	seeing and hearing
		C)	talking and understanding
		D)	balance and muscle coordination


16	A small area at the top of the hindbrain that helps regulate sensory reflexes is called the
		A)	medulla
		B)	pons
		C)	forebrain
		D)	midbrain


17	According to the text, the most dramatic function of the limbic system is carried out by the
		A)	hippocampus
		B)	cingulate cortex
		C)	amygdala
		D)	septal area


18	People who experience Wernicke's aphasia have had damage to the
		A)	frontal lobe
		B)	somatosensory area
		C)	temporal lobe
		D)	occipital lobe


19	The processing of sensory information from the eyes is carried out in which lobe of the cerebral cortex?
		A)	frontal
		B)	parietal
		C)	temporal
		D)	occipital


20	The structure that allows communication between the two cerebral hemispheres is called the
		A)	corpus callosum
		B)	cingulate cortex
		C)	reticular formation
		D)	association area


21	Research with split-brain patients has revealed the localization of what types of abilities in the left hemisphere?
		A)	emotional expression
		B)	recognition of stimuli
		C)	abstract thinking
		D)	language expression


22	Research suggests that positive emotions are more likely to be processed in the
		A)	corpus callosum
		B)	left hemisphere
		C)	right hemisphere
		D)	amygdala


23	Which of the following computer terms is analogous to the brain's interacting system?
		A)	serial processing
		B)	parallel processing
		C)	multiple processing
		D)	binary processing


24	The gland that is often considered to be the master gland is the
		A)	adrenal
		B)	pituitary
		C)	gonads
		D)	thyroid


25	How are hormones different from neurotransmitters?
		A)	hormones are chemical messengers
		B)	hormones are carried in the bloodstream
		C)	hormones are not regulated by the brain
		D)	hormones are by-products of neurotransmitters


26	The gland(s) that produce(s) male and female sex hormones is (are) the
		A)	pituitary gland
		B)	thyroid gland
		C)	adrenal glands
		D)	gonads


27	Which of the following statements is not correct?
		A)	Chromosomes contain genes, which are made of DNA.
		B)	A normal human cell contains 46 chromosomes.
		C)	A normal gamete contains 23 chromosomes.
		D)	DNA is made of genes, which contain chromosomes.


28	How is it possible for two brown-eyed parents to have a blue-eyed child?
		A)	if both parents contribute a recessive gene
		B)	if both parents contribute a dominant gene
		C)	if one parent contributes a recessive gene and one parent contributes a dominant gene
		D)	It's impossible for two brown-eyed parents to have a blue-eyed child unless they adopt.


29	Down syndrome
		A)	is caused by the presence of an additional 21st chromosome
		B)	can cause mental retardation
		C)	causes obvious physical irregularities
		D)	all of the above


30	Which of the following characterizes dizygotic twins?
		A)	They are formed when two different eggs are fertilized by different sperm cells.
		B)	They are formed by a single fertilized egg
		C)	They are identical in appearance.
		D)	They are identical in genetic structure.


31	To determine the influence of inheritance on behavior, psychologists have used what type of research?
		A)	adoption studies
		B)	twin studies
		C)	formal experiments
		D)	a and b above


32	Which of the following is characteristic of monozygotic twins?
		A)	they are referred to as identical twins
		B)	they are formed from a single ovum
		C)	they are virtually identical in genetic structure
		D)	all of the above


33	Research on the role of inheritance in personality and abnormal behavior suggests that
		A)	personality is inherited
		B)	abnormal behavior is inherited
		C)	personality and abnormal behavior may be influenced in part by inheritance
		D)	none of the above


34	Each of the following has been demonstrated in the brains of schizophrenics except
		A)	greatly enlarged ventricles
		B)	a smaller hippocampus
		C)	abnormal levels of acetylcholine
		D)	abnormal levels of dopamine


35	According to Mednick, schizophrenia is likely in persons who
		A)	have a genetic predisposition
		B)	suffer a health complication during pregnancy or birth
		C)	live with a schizophrenic parent
		D)	a and b above

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