how do you breathe>?

Question

my friend hasnt been breathing so i think she needs to know how

Answer 1

I might breath differently than you, but I expand my lungs unconsciously allowing air to fill them up. I then exhale mostly carbon dioxide. I breathe more profusely when I exercise. The oxygen I take in burns calories but may cause me to rust inside. That is why I take vitamins so my breathing will be better Breath is life, unless it is bad breath. But that is another story.

Answer 2

Well, if your friend doesn't breath, and you post the question on the Internet check in a week, if somebody answered, then I would say it is too late to help your friend. But anyway, here's what our biology teacher told us:
You open your mouth.
Air moves into the lungs because of diffusion (air moves from higher to lower concentration).
The lungs take the oxygen out and put it into your blood.
The lungs pull themselves together and push the air out.
That's pretty much it!

Answer 3

I hope through your nose and mouth but really it all depends how the air around you smells, then you would have to plug your nose and try to breathe through your mouth only. I know, because I live near a factory and sometimes the air gets pretty bad.

Answer 4

Breathing transports oxygen into the body and carbon dioxide out of the body. Aerobic organisms require oxygen to create energy via respiration, in the form of energy-rich molecules such as glucose. The medical term for normal relaxed breathing is eupnoea.

Humans typically breathe between 12 and 20 times per minute, with children breathing faster than adults. Babies may breathe as much as 40 times per minute. Adults normally breathe about 500-700ml of air at a time. An average 14 year old takes around 30,000 breaths per day.

Breath is sometimes used as a metaphor for life itself, and often "last breath" is the most obvious sign that death has occurred. The association between the end of life and breathing is not absolute, however. As modern treatment can now take over the process of breathing by mechanical ventilation, or CPR, breathing can be restarted if it stops. Because of this, in modern times death is now better defined in terms of brain function.

Breathing is only part of the process of delivering oxygen to where it is needed in the body. Breathing in, or inhaling, is usually an active movement, with the contraction of chest and diaphragm muscles needed. At rest, breathing out, or exhaling, is normally a passive process powered by the elastic recoil of the chest, similar to a deflating balloon. The process of gas exchange occurs in the alveoli by passive diffusion of gasses between the alveolar gas and the blood passing by in the lung capillaries. Once in the blood, the heart powers the flow dissolved gasses around the body in the circulation.

As well as carbon dioxide, breathing also results in loss of water from the body. Exhaled air has a relative humidity of 100% because of water diffusing across the moist surface of breathing passages and alveoli.

The air we inhale is roughly 78% nitrogen, 21% oxygen and 1% argon, helium, carbon dioxide, other gases and 1% Water Vapor.

Breathing is one of the few bodily functions which, within limits, can be controlled both consciously and unconsciously. Conscious attention to breathing is common in many forms of meditation, specifically anapana and other forms of yoga and Chinese qigong. In music, breath is used to play wind instruments and many aerophones. Laughter, physically, is simply repeated sharp breaths. Hiccups are another still-mysterious breath-related phenomenon.

Specialized centers in the brainstem automatically regulate the rate and depth of breathing depending on the body’s needs at any time. When carbon dioxide levels increase in the blood, it reacts with the water in blood, producing carbonic acid. The drop in the blood's pH will then cause the medulla (signalling centre in brain) to send nerve impulses to the diaphragm and the intercostal muscles, increasing the rate of breathing. While exercising, the level of carbon dioxide in the blood increases due to increased cellular respiration by the muscles, and so breathing rate increases. During rest, the level of carbon dioxide is lower, so breathing rate is lower. This ensures an appropriate amount of oxygen is delivered to the muscles and other organs. This automatic control of respiration can be impaired in premature babies, or by drugs or disease.

It is not possible for a healthy person to voluntarily stop breathing. If we do not inhale, the level of carbon dioxide builds up in our blood, and we experience overwhelming air hunger. This irrepressible reflex is not surprising given that without breathing, the body's internal oxygen levels drop dangerously low within minutes, leading to permanent brain damage followed eventually by death.

Answer 5

umm if ur friend wasnt breathing shed be dead. Do u mean when she sleeps she stops breathing?

Answer 6

Well, if she isn't breathing then she's dead, you both should have realized that breathing comes naturally.

Answer 7

Suck in fresh air through yer nose and push out the bad air through yer mouth.

Answer 8

You suck in oxygen from your mouth and nose (mostly nose). It goes into you throat or trachea and into your lungs. Once in your lungs it goes into little air bubbles in your lungs called capillaries (I think, forgot the name). There, your body exchanges the oxygen into your blood for waste like carbon dioxide. And then you blow out the air waste. =D

Answer 9

if your friend hasn't been breathing then wouldn't he/she be dead? you breathe through your lungs,mouth and/or nose!

Answer 10

ok stop joking. unless u need to hear some funny answers, so here goes:

is ur friend dead? that might explain it.

and swiffer, no cannibal jokes. eauww.