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Weeks 04 - 05

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Quiz 1b

Question 1 of 30

1

A tumour in the temporal lobe may give rise to:

Select one of the following:

  • Flashes of light

  • Prolonged yawning

  • Olfactory hallucinations

  • Visual hallucinations

Explanation

Question 2 of 30

1

According to the trichromatic theory of colour vision, ___.

Select one of the following:

  • There are only three colours of light in the world

  • Rods are important for perception of light colours

  • There are only three rods and three cones in each eye

  • Our perception of colour depends on the relative activity of three types of cones

Explanation

Question 3 of 30

1

Which of the following best characterises how axons arrive at the correct target cells?

Select one of the following:

  • They follow electrical gradients

  • They follow chemical gradients from the target cell

  • Axons send out chemicals to the target cells

  • Target cells send out branches for the axons to follow

Explanation

Question 4 of 30

1

Children with strabismus often fail to develop:

Select one of the following:

  • Perception of movement

  • Any kind of depth perception

  • Stereoscopic depth perception

  • The ability to recognise faces

Explanation

Question 5 of 30

1

Damage to which hindbrain structure would be most life-threatening?

Select one of the following:

  • Occipital cortex

  • Medulla

  • Corpus callosum

  • Cerebellum

Explanation

Question 6 of 30

1

Diaschisis refers to the:

Select one of the following:

  • Increased activity in the cerebral cortex after damage to any part of the brain

  • Decreased activity of surviving neurons after other neurons are damaged

  • Increase in activity of neurons surrounding a damaged area

  • Increased activity in the hypothalamus after damage to any part of the brain

Explanation

Question 7 of 30

1

If some of the axons innervating a given cell are destroyed, what compensatory process takes place in the REMAINING presynaptic cells?

Select one of the following:

  • Activation of previously silent synapses

  • Collateral sprouting

  • Excess production of myelin

  • Removal of toxins

Explanation

Question 8 of 30

1

If you wanted to see a faint star at night, you should:

Select one of the following:

  • Look at a mirror’s reflection of it

  • Stare straight at it

  • Look slightly to one side

  • Wait until daytime

Explanation

Question 9 of 30

1

In comparison to the cones, rods ___.

Select one of the following:

  • Are more common toward the centre of the retina

  • Reach their peak firing levels slowly

  • Are more sensitive to detail

  • Are more sensitive to dim light

Explanation

Question 10 of 30

1

In humans, the optic nerves from the two eyes follow what pathway?

Select one of the following:

  • Half of the axons from each eye cross to the other side at the optic chiasm

  • They go directly to the contralateral hemisphere, without contacting each other

  • They go directly to the ipsilateral hemisphere, without contacting each other

  • They combine to send identical information to each hemisphere

Explanation

Question 11 of 30

1

In what order does visual information pass through the retina?

Select one of the following:

  • Receptor cells, bipolar cells, ganglion cells

  • Bipolar cells, receptor cells, ganglion cells

  • Ganglion cells, bipolar cells, receptor cells

  • Receptor cells, ganglion cells, bipolar cells

Explanation

Question 12 of 30

1

Ischemia is to ____ as haemorrhage is to ____.

Select one of the following:

  • Proximal; distal

  • Older individuals; younger individuals

  • Rupture; obstruction

  • Obstruction; rupture

Explanation

Question 13 of 30

1

Parvocellular neurons most likely receive input from:

Select one of the following:

  • Bipolar cells that receive input from cones

  • Rods

  • The periphery of the retina

  • Magnocellular neurons

Explanation

Question 14 of 30

1

Secretions from which glad will also affect the secretion of hormones from the thyroid gland, adrenal gland, and ovaries or testes?

Select one of the following:

  • Pituitary gland

  • Pancreas

  • Thymus gland

  • Pineal gland

Explanation

Question 15 of 30

1

Which part of the cerebral cortex is most important for the sense of touch?

Select one of the following:

  • Frontal lobe

  • Parietal lobe

  • Temporal lobe

  • Occipital lobe

Explanation

Question 16 of 30

1

Soon after cells have differentiated as neurons or glia, they __.

Select one of the following:

  • Proliferate

  • Migrate

  • Myelinate

  • Release excess glutamate

Explanation

Question 17 of 30

1

Rods are to __ as cones are to __.

Select one of the following:

  • the periphery; the fovea

  • vertabrates; invertabrates

  • red; blue

  • size constancy; shape constancy

Explanation

Question 18 of 30

1

Sympathetic ganglia:

Select one of the following:

  • Act more independently than do parasympathetic ganglia

  • Are closely linked and often act as a single system

  • Are located inside the spinal cord

  • Have short postganglionic fibres extending to internal organs

Explanation

Question 19 of 30

1

The cell bodies of sensory neurons that are in clusters of neurons outside the spinal cord are called ___.

Select one of the following:

  • Dorsal root ganglia

  • Ventral root ganglia

  • Sensory nuclei

  • Sensory clusters

Explanation

Question 20 of 30

1

As axons from the spinal cord enter the skull, which structure do they enter?

Select one of the following:

  • midbrain

  • hindbrain

  • cerebellum

  • forebrain

Explanation

Question 21 of 30

1

The function of neurotrophins is to ___.

Select one of the following:

  • Be used as fuel

  • Signal that an axon has been “rejected”

  • Inhibit proliferation

  • Promote survival of axons

Explanation

Question 22 of 30

1

The visual path in the parietal cortex is referred to as the:

Select one of the following:

  • Ventral stream

  • Parvocellular pathway

  • Dorsal stream

  • Magnocellular pathway

Explanation

Question 23 of 30

1

Together, the somatic nervous system and the autonomic nervous system make up the ___ nervous system.

Select one of the following:

  • Central

  • Peripheral

  • Sympathetic

  • Dorsal

Explanation

Question 24 of 30

1

Superior colliculus is to __ as inferior colliculus is to __.

Select one of the following:

  • hearing; vision

  • vision; hearing

  • taste; smell

  • vision; touch

Explanation

Question 25 of 30

1

What do the corpus callosum and anterior commissure have in common?

Select one of the following:

  • They both produce CSF

  • They each have 6 laminae

  • They are made up of gray matter

  • They both connect the two hemispheres

Explanation

Question 26 of 30

1

An electroencephalograph measures:

Select one of the following:

  • the average activity of the cells in a given region of the brain

  • the electrical resistance of hair

  • the rate of glucose uptake in active regions of the brain

  • action potentials in an individual neuron

Explanation

Question 27 of 30

1

Which of the following brain imaging techniques does NOT provide a functional measure of brain activity?

Select one of the following:

  • MRI

  • MEG

  • fMRI

  • EEG

Explanation

Question 28 of 30

1

The precentral gyrus is essential for the __.

Select one of the following:

  • regulation of emotions

  • control of fine movements

  • attention to hunger and thirst

  • coordination between vision and hearing

Explanation

Question 29 of 30

1

Which statement best characterises the fovea?

Select one of the following:

  • It has more rods than cones

  • It has the greatest perception of detail

  • It falls in the shadow cast by the pupil

  • It surrounds the point of exit in the optic nerve

Explanation

Question 30 of 30

1

___ cells proliferate after a stroke.

Select one of the following:

  • Ischemia

  • Penumbra

  • Cancer

  • Microglia

Explanation

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