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MrMuchimi
3 years ago
5

When an individual first gets dressed, he or she is conscious of the clothing on his body. A short time later, however, he or sh

e is no longer aware of it. This phenomenon of the CNS ignoring a relatively unimportant sensation is known as ________.
Biology
2 answers:
avanturin [10]3 years ago
5 0

Answer:

Sensory/Receptor adaptation

Explanation:

Sensory adaptation refers to a reduction in sensitivity to a

stimulus after constant exposure to it. While sensory

adaptation reduces our awareness of a constant stimulus, it

helps free up our attention and resources to attend to other

stimuli in the environment around us. All five of our senses

are constantly adjusting to what's around us, as well as to us

individually and what we are experiencing, such as aging or

disease.

Just imagine what it would be like if you didn't experience

sensory adaptation. You might find yourself overwhelmed by

the pungent smell of onions coming from the kitchen or the

blare of the television from the living room. Since constant

exposure to a sensory stimulus reduces our sensitivity to it,

we are able to shift our attention to other things in our

environment rather than focusing on one overwhelming

stimulus.

IRISSAK [1]3 years ago
4 0

Answer:

Sensory adaptation.

Explanation:

When the sensory receptors are exposed to a constant stimulus for a prolonged period, the receptors decrease their ability to respond and this leads to a decreased sensitivity of the stimulus. This phenomenon is referred to as sensory adaptation.

Sensory adaptation occurs in all of our five major senses. From taste to smell, touch, sight and hearing. This mechanism is used by the body to ignore trivial and unimportant stimuli and direct our attention to other stimuli around us.

Other examples of sensory adaptation are;

A) When we adapt to constant noise coming from a particular source such as a disco hall.

B) When we no longer notice the smell of our deodorants.

C)When the eyes adjust and adapt to a dark room.

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If the amount of sodium in the blood increases, what would a negative feedback control mechanism be expected to do?
Crank

Answer: Decreases

Explanation:

The amount of sodium in the blood will increase as the main function of the negative feedback is to maintain the homeostasis inside the body.

If blood pressure is too high, then heart rate decreases because of this the blood vessels increases in the diameter and the kidney retains less water.

These changes will return the blood pressure to be normal. The same process gets reversed when the blood pressure decreases.

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morpeh [17]

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3 years ago
Parkinson disease is associated with demyelination of CNS neurons. a pyramidal nerve tract lesion. insufficient production of ac
Pepsi [2]

Answer:

The correct option is: <em>a deficiency of dopamine in the substantia nigra.</em>

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Cells from this area degenerate and die progressively causing important degeneration in the central nervous system. The cells that die -with no known reason- are those that produce dopamine and proportionate dopaminergic innervation to the encephalon. In fact, almost all the symptoms exhibited by patients with the disease can be explained by the lack of dopamine in the substantia nigra.  

This area uses the neurotransmitter to communicate neurons from the base ganglia. Ganglia are responsible of modulating and modifying movements.

The nigrostriatal system participates in planning and automatic execution of learned movements. When the ganglia activity decreases, so it does the amount and velocity of movements, something typical of the disease.  

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Industrial produce chemical reaction environment
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