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Bad news – his dog (.....).
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En cas de contradiction entre le D.O.C et un texte spécial :

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5Marks

Indicate whether the following statements are TRUE or FALSE:

 

Magno cells respond poorly to fast stimuli.

 

Both magno and parvo cells can adapt rapidly.  

 

Parvo cells process information about colour and detail.  

 

Magno cells process information about depth and motion.  

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5Marks

Type in to the empty spaces in each statement the correct answer or select the correct answer in the drop-down menu of options.

Neuronal activity in CNS nuclei forms .

 

In the maps, important body surfaces show two major attributes vital for perception:

First, maps are 

so that more neurons respond to stimulation of important body surfaces than to less important surfaces.

Second,   of neurons responding to important body surfaces are small, while those responding to less important body surfaces are large.

 

Thus, for important body surfaces, there are

 neurons sensitive to that surface, and they each respond to stimulation of only
 parts of that surface.  

 

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5Marks

Match the descriptions in the statements in the left column against the structures/terms in the drop down list. Note that options may be used more than once.

The general region of the brain which consists of the diencephalon and the telencephalon.   

The major nerve tract which connects the two hemispheres of the cerebrum.   

The general term for the nerves which carry information to and from the brain.   

The three types of functional areas of the cerebral cortex.     

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5Marks

Type in to the empty spaces in each statement the correct answer (don't use abbreviations or capital letters) or select the correct answer in the drop-down menu of options.

The receptive zones for temperature sensations are

which contain a variety of different

types of

 .

 

The structures are  all from the same family of 

, each of

which is specialized for a particular range of temperatures.

   

Temperature sensations are not well localised because the neurons that carry information to the brain about temperature have large  .

 

Thus we are generally unable to detect changes in temperature in very small patches of skin but need to integrate information coming from a larger surface area. Indeed, our ability to well localize a cold or hot object touching our skin is due

to activation of cutaneous

 by the object.  

 

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5Marks

Type in to the empty spaces in each statement the correct answer or select the correct answer in the drop-down menu of options.

  

The amount of refraction from all the structures of the eye at rest allows us to see in sharp focus light rays from   .objects.

 

As objects come closer, the light rays will now be  

 and if there is no change in the eye, the light rays would now
  at the , the receptor surface.

 

To prevent this, the eye has to gain extra refraction and it is able to do so through changes at the

. This is the only structure in the eye that is able

to change its

.

   

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5Marks

Type in to the empty spaces in each statement the correct answer or select the correct answer in the drop-down menu of options. In any spelling that requires a choice between the use of "s" or "z" in a word, choose the letter "z". Don't use abbreviations or capital letters but leave spaces in any two word answers.

   

Tip link proteins are attached to 

channels.

 

These channels are opened and closed by the back-and-forth motion of the  .

   

This modulates the movement of  + into the cell bodies of the

.

 

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5Marks

In the following statements, choose the correct option from the drop-down list. Note that an option can be used more than once.

Receptor cells are electrically polarized. This means that they have a

.

     

This allows the receptor cells to signal the presence of a stimulus by simply changing this state, to produce what is known as a

through a process called
.

         

This process involves a change to the 

. either by direct or indirect effects, the latter being mediated by
.

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Selecciona el error porcentual del resultado obtenido por el método de Runge-Kutta con la solución exacta del método analítico para el PVI.

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