Neuroscience Quiz 3

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The fact that all colors on older televisions were created by combining only three different colors of light supports the ____ theory of color vision.​

trichromatic

What would be the likely outcome of a person who was blind at birth, and had vision restored later in life by the removal of cataracts (clouded lenses)?​

trouble describing the shapes of objects

The visual paths in the temporal cortex collectively are referred to as the ____.​

ventral stream

Why is it that all neurons in a healthy adult brain have made appropriate connections?​

​If an axon does not make the appropriate connections by a certain age, it dies.

A strand of DNA serves as a template (model) for the synthesis of ____.​

​RNA

What modern day practice helps prevent an inadequate production of thyroid hormones?​

​iodized salt

The most common form of color vision deficiency is due to ____.​

​long- and medium-wavelength cones making the same photopigment

Changes in single genes are called ____.​

​mutations

Organisms that help those they recognize as capable of returning the favor are displaying ____.​

​reciprocal altruism

V1 neurons would be most strongly activated by viewing ____.​

​repeating stripes on a flag

Closed head injury results in damage partially because of ____.​

​rotational forces that push the brain against the inside of the skull

After damage to a set of axons, neurotrophins induce nearby ____.​

​uninjured axons to form new branches

Why is it that every axon in an adult mammal has a target cell (muscle cell or other neuron) with which it makes synaptic contact?​

Axons that fail to find a target cell die

Which statement characterizes the fovea?​

It has the greatest perception of detail.

In comparison to cones, rods ____.​

are more sensitive to dim light

An example of a sex-linked trait is ____.​

color vision deficiency

After the migrating neuron reaches its destination, ____ begin to form.​

dendrites

In the vertebrate retina, which cells are responsible for lateral inhibition?​

horizontal cells

Damage to the magnocellular pathway would most likely lead to the loss of ____.​

motion perception

Axons from the lateral geniculate extend to which area of the cerebral cortex?​

occipital lobe


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