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Lilit [14]
3 years ago
5

Por que o nosso nariz fica entupido quando estamos resfriados?

Biology
1 answer:
Lubov Fominskaja [6]3 years ago
6 0

why does our nose get stuffy when we have a cold

Answer:

Due to dilation of blood vessels in the sinuses of the nose

Explanation:

Often times, we think our nose gets stuffed up due to the excess mucus in times of cold but it is not always so.

We get stuffed due to the body's homeostasis, a drive to internally control and balance the outside environment.

  • During cold, blood vessels dilate so as to allow for more inflow of blood.
  • Incoming blood brings in more heat to the body parts.
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The smallest unit of life is a ,and all organisms have at least one.
iogann1982 [59]

Answer: A cell

Explanation:

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3 years ago
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What are the three looped fluid-filled canals in the inner ear that detect the direction of the body's movement?
masya89 [10]

Answer:

The semicircular canals ( vestibular system)

Explanation:

The inner ear of humans is made up of two parts.

  • The cochlea which aid in the hearing process.
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The vestibular system comprises of three fluid filled looped canals . The vestibular system comprises of sensory cells which detect even a slight tilting of the head. The fluid filled canals are termed as the semicircular canals. It is due to the vestibular system that we feel a room to bespinning even after we have finished our rotation ride.

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3 years ago
How long does it take for a person's cells to all die after clinical death?
Blababa [14]
Clinical death is the medical term for cessation of blood circulation and breathing, the two necessary criteria to sustain human and many other organisms' lives.

It occurs when the heart stops beating in a regular rhythm, a condition called cardiac arrest.


Brain injuries start to accumulate almost immediately after Clinical Death.

Full recovery of the brain after more than 3 minutes of clinical death at normal body temperature is rare.

Usually brain damage or later brain death results after longer intervals of clinical death even if the heart is restarted and blood circulation is successfully restored.
Although loss of function is almost immediate, there is no specific duration of clinical death at which the non-functioning brain clearly dies.






The most vulnerable cells in the brain, CA1 neurons of the hippocampus, are fatally injured by as little as 10 minutes without oxygen.

However, the injured cells do not actually die until hours after resuscitation.

Brain failure after clinical death is now known to be due to a complex series of processes called Reperfusion Iinjury that occur after blood circulation has been restored, especially processes that interfere with blood circulation during the recovery period.

Hope this helps!!!
~Alkka♥


4 0
3 years ago
Hello please help i’ll give brainliest
Lady bird [3.3K]

Answer:

The Earth has two basic sources of energy - that reaching the Earth from the Sun (Solar Energy) and that reaching the surface of the Earth the Earth itself (Internal or Geothermal Energy). Solar Energy - reaches the Earth in the form of radiant energy, and makes up 99.987% of the energy received by the Earth.

Explanation:

hope this helps

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3 years ago
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siniylev [52]

Answer:

A

Explanation:

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