18491699
Pregunta 1
Pregunta
A tumour in the temporal lobe may give rise to:
Respuesta
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Flashes of light
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Prolonged yawning
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Olfactory hallucinations
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Visual hallucinations
Pregunta 2
Pregunta
According to the trichromatic theory of colour vision, ___.
Respuesta
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There are only three colours of light in the world
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Rods are important for perception of light colours
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There are only three rods and three cones in each eye
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Our perception of colour depends on the relative activity of three types of cones
Pregunta 3
Pregunta
Which of the following best characterises how axons arrive at the correct target cells?
Respuesta
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They follow electrical gradients
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They follow chemical gradients from the target cell
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Axons send out chemicals to the target cells
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Target cells send out branches for the axons to follow
Pregunta 4
Pregunta
Children with strabismus often fail to develop:
Respuesta
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Perception of movement
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Any kind of depth perception
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Stereoscopic depth perception
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The ability to recognise faces
Pregunta 5
Pregunta
Damage to which hindbrain structure would be most life-threatening?
Respuesta
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Occipital cortex
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Medulla
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Corpus callosum
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Cerebellum
Pregunta 6
Pregunta
Diaschisis refers to the:
Respuesta
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Increased activity in the cerebral cortex after damage to any part of the brain
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Decreased activity of surviving neurons after other neurons are damaged
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Increase in activity of neurons surrounding a damaged area
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Increased activity in the hypothalamus after damage to any part of the brain
Pregunta 7
Pregunta
If some of the axons innervating a given cell are destroyed, what compensatory process takes place in the REMAINING presynaptic cells?
Respuesta
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Activation of previously silent synapses
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Collateral sprouting
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Excess production of myelin
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Removal of toxins
Pregunta 8
Pregunta
If you wanted to see a faint star at night, you should:
Respuesta
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Look at a mirror’s reflection of it
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Stare straight at it
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Look slightly to one side
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Wait until daytime
Pregunta 9
Pregunta
In comparison to the cones, rods ___.
Respuesta
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Are more common toward the centre of the retina
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Reach their peak firing levels slowly
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Are more sensitive to detail
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Are more sensitive to dim light
Pregunta 10
Pregunta
In humans, the optic nerves from the two eyes follow what pathway?
Respuesta
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Half of the axons from each eye cross to the other side at the optic chiasm
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They go directly to the contralateral hemisphere, without contacting each other
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They go directly to the ipsilateral hemisphere, without contacting each other
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They combine to send identical information to each hemisphere
Pregunta 11
Pregunta
In what order does visual information pass through the retina?
Respuesta
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Receptor cells, bipolar cells, ganglion cells
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Bipolar cells, receptor cells, ganglion cells
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Ganglion cells, bipolar cells, receptor cells
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Receptor cells, ganglion cells, bipolar cells
Pregunta 12
Pregunta
Ischemia is to ____ as haemorrhage is to ____.
Respuesta
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Proximal; distal
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Older individuals; younger individuals
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Rupture; obstruction
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Obstruction; rupture
Pregunta 13
Pregunta
Parvocellular neurons most likely receive input from:
Respuesta
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Bipolar cells that receive input from cones
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Rods
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The periphery of the retina
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Magnocellular neurons
Pregunta 14
Pregunta
Secretions from which glad will also affect the secretion of hormones from the thyroid gland, adrenal gland, and ovaries or testes?
Respuesta
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Pituitary gland
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Pancreas
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Thymus gland
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Pineal gland
Pregunta 15
Pregunta
Which part of the cerebral cortex is most important for the sense of touch?
Respuesta
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Frontal lobe
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Parietal lobe
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Temporal lobe
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Occipital lobe
Pregunta 16
Pregunta
Soon after cells have differentiated as neurons or glia, they __.
Respuesta
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Proliferate
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Migrate
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Myelinate
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Release excess glutamate
Pregunta 17
Pregunta
Rods are to __ as cones are to __.
Respuesta
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the periphery; the fovea
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vertabrates; invertabrates
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red; blue
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size constancy; shape constancy
Pregunta 18
Pregunta
Sympathetic ganglia:
Respuesta
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Act more independently than do parasympathetic ganglia
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Are closely linked and often act as a single system
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Are located inside the spinal cord
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Have short postganglionic fibres extending to internal organs
Pregunta 19
Pregunta
The cell bodies of sensory neurons that are in clusters of neurons outside the spinal cord are called ___.
Respuesta
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Dorsal root ganglia
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Ventral root ganglia
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Sensory nuclei
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Sensory clusters
Pregunta 20
Pregunta
As axons from the spinal cord enter the skull, which structure do they enter?
Respuesta
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midbrain
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hindbrain
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cerebellum
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forebrain
Pregunta 21
Pregunta
The function of neurotrophins is to ___.
Respuesta
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Be used as fuel
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Signal that an axon has been “rejected”
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Inhibit proliferation
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Promote survival of axons
Pregunta 22
Pregunta
The visual path in the parietal cortex is referred to as the:
Respuesta
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Ventral stream
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Parvocellular pathway
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Dorsal stream
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Magnocellular pathway
Pregunta 23
Pregunta
Together, the somatic nervous system and the autonomic nervous system make up the ___ nervous system.
Respuesta
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Central
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Peripheral
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Sympathetic
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Dorsal
Pregunta 24
Pregunta
Superior colliculus is to __ as inferior colliculus is to __.
Respuesta
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hearing; vision
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vision; hearing
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taste; smell
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vision; touch
Pregunta 25
Pregunta
What do the corpus callosum and anterior commissure have in common?
Respuesta
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They both produce CSF
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They each have 6 laminae
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They are made up of gray matter
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They both connect the two hemispheres
Pregunta 26
Pregunta
An electroencephalograph measures:
Respuesta
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the average activity of the cells in a given region of the brain
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the electrical resistance of hair
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the rate of glucose uptake in active regions of the brain
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action potentials in an individual neuron
Pregunta 27
Pregunta
Which of the following brain imaging techniques does NOT provide a functional measure of brain activity?
Respuesta
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MRI
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MEG
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fMRI
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EEG
Pregunta 28
Pregunta
The precentral gyrus is essential for the __.
Respuesta
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regulation of emotions
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control of fine movements
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attention to hunger and thirst
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coordination between vision and hearing
Pregunta 29
Pregunta
Which statement best characterises the fovea?
Respuesta
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It has more rods than cones
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It has the greatest perception of detail
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It falls in the shadow cast by the pupil
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It surrounds the point of exit in the optic nerve
Pregunta 30
Pregunta
___ cells proliferate after a stroke.
Respuesta
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Ischemia
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Penumbra
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Cancer
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Microglia
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