basis of behavior
Which of the following would most likely result from an injury to the medulla?
a life threatening distribution of heartbeat and breathing
An image projected to the left visual field of a split-brained person will be processed in the
right visual cortex
Which of the following allows the examination of living brain tissue visually without performing surgery?
Mri scan
Which of the following is reduced during a fight-or-flight reaction?
adrenaline
Damage to which of the following brain structures may cause the inability to detect the emotional significance of facial expressions, especially those demonstrating fear?
amygdala
A drug that has the effect of intensifying or mimicking a particular neurotransmitter can be characterized as
an antagonist, because it intensifies the effects of a particular neurotransmitter
Which of the following correctly pairs subdivisions within the major divisions of the human nervous system?
autonomic ; sympathetic and parasympathetic
Neurotransmitters are typically stored in which of the following parts of a neuron?
axon terminals
Which of the following parts of the brain is most active in decision-making?
cerebral cortex
A person with damage to Broca's area would most likely demonstrate which of the following symptoms?
difficulty forming words and producing speech but do not struggle with comprehension
Damage to the cerebellum would most likely result in which of the following problems?
difficulty with coordination , imbalance and gait disorders
Which of the following neurotransmitters has been linked to Parkinson's disease and schizophrenia?
dopamine
Painkilling substances produced by the brain are known as
endorphins
The brain scans of people with amnesia are most likely to show damage to the
hippocampus
Activation of the parasympathetic nervous system results in which of the following?
it increases heart rate
Which of the following is true of the reticular activating system?
it regulates levels of arousal
Juana accidentally touched a hot iron. She immediately drew back her hand. Which of the following is true about the withdrawal of her hand?
it was initiated in the spinal cord
Which of the following areas of the body has the largest number of sensory neurons?
lips
The area of the brain stem that is important in controlling breathing is the
medulla
Which of the following provides information regarding brain function by monitoring the brain at work through metabolism of glucose?
positron emission tomography
Which of the following is the correct sequence of the neural chain of events set in motion by an environmental stimulus?
receptors -> afferent neurons -> inter neurons -> efferent neurons -> effectors
An individual with damage to Wernicke's area is most likely to have difficulty Responses
remembering the name of someone in a photograph
The process by which neurotransmitters are reabsorbed into the neuron after it fires is called
reuptake
What hormone seems to be most closely linked with aggressive behavior?
testosterone
Immediately after firing, a neuron is incapable of responding to stimulation. This condition is referred to as
the absolute refractory phase
Hunger and eating are primarily regulated by which of the following?
the hypothalamus
The part of the endocrine system that is responsible for overseeing and regulating the release of hormones across the entire body is the
the hypothalamus
Treating a patient for Parkinson's disease includes administering a chemical that will lead to increases in the patient's
the levels of dopamine
Which of the following occurs when a neuron is stimulated to its threshold?
the movements of sodium and potassium ions across the membrane creates an action potential
The time shortly after a neuron fires is referred to as
the refractory period
Damage to a small part of the occipital lobe would most likely result in
vision
