Question 51 (1 point)
Neurons communicate with each other by releasing chemicals called ___________ across a tiny space between two neurons called a __________.
Question 51 options:
SaveQuestion 52 (1 point)
What is the name for a change in a cell’s membrane potential which makes the inside of the cell more negative and decreases the chance of an action potential?
Question 52 options:
SaveQuestion 53 (1 point)
In front of the central sulcus lies the ________________ which connects to the muscles of the body, and on volitional command moves them
Question 53 options:
precentral gyrus (also called the motor strip)
postcentral gyrus (also called the somatosensory strip)
precentral sulcus (also called the movement strip)
SaveQuestion 54 (1 point)
A sex linked characteristic
Question 54 options:
Result from genetic code differing in only one location on an allele
Results from genes on X chromosome that are not duplicated on the Y chromosome
Results from twins only sharing 50% of genes
All of the above
SaveQuestion 55 (1 point)
Question 55 options:
are also called neuroblasts
form the lining of the neural tube
rapidly divide and specialize into many varieties of neurons and glial cells
none of the above
all of the above
SaveQuestion 56 (1 point)
The process where the sensitivity of your visual system can be tuned to be most sensitive to the levels of contrast that are most prevalent in the environment is called
Question 56 options:
SaveQuestion 57 (1 point)
Which of the following statements refers to the brain stem?
Question 57 options:
It is responsible for many of the neural functions that keep us alive, including regulating our respiration (breathing), heart rate, and digestion
It contains the medulla, pons, midbrain, and diencephalon (which consists of thalamus and hypothalamus).
It is involved in our reproductive system
All of the above
A and B only
SaveQuestion 58 (1 point)
Coordination of motion information with visual information that allows you to maintain your gaze on an object while you move is called
Question 58 options:
SaveQuestion 59 (1 point)
A transient all-or-nothing electrical current that is conducted down the axon when the membrane potential reaches the threshold of excitation is called
Question 59 options:
Cell membrane diffusion
SaveQuestion 60 (1 point)
What is the junction between the presynaptic terminal button of one neuron and the dendrite, axon, or soma of another postsynaptic neuron?
Question 60 options:
SaveQuestion 61 (1 point)
Two almond-shaped structures located in the medial temporal lobes of the brain involved in emotion
Question 61 options:
SaveQuestion 62 (1 point)
The region where the motoneuron terminal and the adjoining muscle fiber meet is called the
Question 62 options:
SaveQuestion 63 (1 point)
Lesions of the_____________ can eliminate all eating to the point where animals will starve to death unless kept alive by force feeding
Question 63 options:
All of the above
SaveQuestion 64 (1 point)
Substance around the axon of a neuron that serves as insulation to allow the action potential to conduct rapidly toward the terminal buttons
Question 64 options:
SaveQuestion 65 (1 point)
The process in which physical energy converts into neural energy is called
Question 65 options:
SaveQuestion 66 (1 point)
What are the chemical substance released by the presynaptic terminal button that acts on the postsynaptic cell?
Question 66 options:
SaveQuestion 67 (1 point)
Which of the following statements is true about fMRI?
Question 67 options:
fMRI measures blood volume and blood flow, and from this we infer neural activity
fMRI data typically have poor temporal resolution
fMRI does not measure neural activity directly
Temporal resolution for fMRI is typically on the order of seconds, whereas its spatial resolution is on the order of millimeters
All of the above
SaveQuestion 68 (1 point)
What is the resting membrane potential?
Question 68 options:
It is when the voltage inside the cell becomes positively charged (approximately +40mV)
The voltage inside the cell relative to the voltage outside the cell while the cell is at rest (approximately -70 mV)
Specific membrane potential that the neuron must reach to initiate an action potential
SaveQuestion 69 (1 point)
Which of the following statements is false?
Question 69 options:
A psychophysiological method is any research method in which the dependent variable is a physiological measure and the independent variable is behavioral or mental (such as memory)
EEG is a psychophysiology method
TMS is a psychophysiology method
MEG is a psychophysiology method
All of the above are false
SaveQuestion 70 (1 point)
Extrapyramidal brain regions that modulate movement include which of the following?
Question 70 options:
Brainstem nuclei including substantia nigra, thalamic nuclei and red nucleus
All of the above
A and C only
SaveQuestion 71 (1 point)
Which of the following statements is NOT true
Question 71 options:
Narcolepsy is characterized by sleep attacks, cataplexy, sleep paralysis and hypnagogic hallucinations
Narcolepsy is caused by pathologies in a system of neurons that secrete orexin
During slow wave sleep, especially during stage 2, some people are afflicted by bedwetting, sleepwalking or night terrors
SaveQuestion 72 (1 point)
The ________________ divides the hemisphere into frontal and parietal-occipital lobes and the __________marks the temporal lobe, which lies below.
Question 72 options:
Central sulcus………………..Lateral sulcus
Central gyrus………………..Lateral gyrus
Lateral sulcus……………….Central sulcus
Lateral gyrus………………..Central gyrus
SaveQuestion 73 (1 point)
What are the three main components of a neuron?
Question 73 options:
Dendrites, the axon and proteins
Dendrites, the soma, and the axon
The soma, the cell body and mitochondria
Nucleus, dendrites and mitochondria
SaveQuestion 74 (1 point)
Which of the following statements is true ?
Question 74 options:
The genome sequence is static and the same in almost all cells but the epigenome is highly dynamic and differs among cell types, tissues, and brain regions
The epigenome sequence is static and the same in almost all cells but the genome is highly dynamic and differs among cell types, tissues, and brain regions
Epigenetic variation emerges across the lifespan
A and C are both true
B and C are both true
SaveQuestion 75 (1 point)
At the very back of the cerebral cortex lies the ______________housing the primary visual cortex.
Question 75 options:
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