Lungs

Oxygen travels through the respiratory system. First, it enters through the mouth or the nasal cavity. Then, it goes down the trachea, or the windpipe, and into the lungs, where it is brought into the blood by the alveoli. Carbon dioxide is also exiting out of the body through the same way, but backwards.

Vital capacity is a term which refers to the maximum volume someone can breathe in his lungs [ the max volume of air inhaled after a max exhalation]. It depends on many factors. How fit someone is, smoking, obesity, height, sex, body size and the posture of the body [when someone lies his vital capacity is less than standing].

Also when playing a flute instrument you'll increase your vital capacity,

The left lung, although smaller than the right lung, does exactly the same thing: takes oxygen from the air and adds it to hemoglobin in the blood, so that all of the cells in the body can have oxygen to use in metabolism.

It really depends on the type of inhalant. Things like prescribed inhalers for things like asthma or bronchitis generally are steroid based and help strengthen the lungs and bronchi so that they can take and hold more oxygen. More harmful things such as cigarettes actually cause the bronchial tubes and bronchi to swell and become inflamed, making it significantly harder to breathe, as the person is physically incapable of taking in as much oxygen. Other things such as paint fumes, certain drugs, glue fumes, and gasoline can cause residue to build up in the lungs, making it significantly more difficult to breathe as there is a buildup of material in the bronchi and they cannot expand or deflate to absorb oxygen. This residue is also particularly dangerous, as it can be absorbed into the blood stream slowly over time and get transported to the heart, where it can do major damage to the muscle tissue and cause a weakening in the heart that can lead to aneurysms and other complications. On top of that, inhalants cause mass damage to the brain, as instead of 100% oxygen, your blood can transport the inhaled chemicals to the brain where they do massive damage to the tissue, nerves, and receptors, which causes brain damage over time. The only inhalant one should ever take is an inhaler if prescribed by a licensed doctor, or normal air.

The substance in the cigarettes that creates the black color is tar. The tar coagulates in the lungs and turns them black............................The Black Lung Lie.........................

Posted on August 6, 2012 by Frank Davis

A discussion of 'smokers' black lungs' started in the comments today. It's the widespread belief that smokers' lungs turn black. Rose pointed out that it all started with James I about four centuries ago. She also dug up some refutations:

"Dr. Duane Carr - Professor of Surgery at the University of Tennessee College of Medicine, said this: "Smoking does not discolor the lung."

Dr. Victor Buhler, Pathologist at St. Joseph Hospital in Kansas City: "I have examined thousands of lungs both grossly and microscopically. I cannot tell you from exmining a lung whether or not its former host had smoked."

Dr. Sheldon Sommers, Pathologist and Director of Laboratories at Lenox Hill Hospital, in New York: "…it is not possible grossly or microscopically, or in any other way known to me, to distinguish between the lung of a smoker or a nonsmoker. Blackening of lungs is from carbon particles, and smoking tobacco does not introduce carbon particles into the lung."

And Brigitte even found a Youtube video:

There is even this (in German) in which a forensic medic states that these "tar" lungs do not exist.

Rich White's Smoke Screens reports the same:

This was confirmed by Dr Jan Zeldenrust, a Dutch pathologist for the Government of Holland from 1951 - 1984. In a television interview in the 1980's he stated that, translated from Dutch, "I could never see on a pair of lungs if they belonged to a smoker or non-smoker. I can see clearly the difference between sick and healthy lungs. The only black lungs I've seen are from peat-workers and coal miners, never from smokers".

Abnormal fluid collection in the lungs can be caused by lung infections or heart problems. The biggest problem with it is that it causes shortness of breath that can lead to respiratory arrest.

This is called a Pulmonary Edema. Everybody has a small layer of fluid on their lungs, but this is where the air sacs within become logged with water and it then becomes dangerous and develops into this condition. The symptoms include breathing difficulties, coughing and distress.

Actually it is the caffeine in coffee that helps to improve the airway function of an asthmatic. Medical researchers found that the body cannot distinquish between caffeine and Theophylline, a drug commonly prescribed for persons with asthma. However, they caution one should never use caffeine instead of their prescribed medication. Two six-ounce cups of coffee, soda (colas) or tea or two chocolate bars contain enough caffeine to help alleviate asthma symptoms in an emergency situation. Coffee is a weak bronchodilator, and chemically related to the drug theophylline. It's been known for well over 100 years that a few cups of coffee can help during an asthma attack. If you are having severe attacks I would consult your doctor and only follow your doctors care when concerning care for your asthma.

There are a number of places in the body where the pressures are lower than atmospheric, or negative. For example,

1- When we breathe in (inspire) the pressure in the lungs must be lower than atmospheric pressure. The lung pressure during inspiration is a few centimeters of water negative.

Yes! Inhaling nystatin clears nasal congestion and postnasal drip.

* home pregnancy test * schedule an appointment with your OB/GYN

Symptoms

* missed period * swollen/tender breasts * changes in color of the breasts * fatigue

about 10 years ;c ) The worst effects pass after 24-48 hours.

Then it takes ages.

But it is worth it. after a week you (I did) notice health gains.

If I could feel better after a week, imagine how much better you feel after a year....

i don't really know, but i will pray for those who do have lung cancer.

There is a higher rate of cures and longer remissions than there used to be; some survivors are 10+ years! I'm a survivor of almost 2 years and hope I last at least that long!

The trachea or windpipe divides into the two primary bronchi which enter each lung. These further divide and subdivide into smaller and smaller bronchi finally forming tiny tubes called bronchioles that end in alveoli (air sacs that facilitate oxygen transfer from the lungs into the pulmonary capillaries).

Technically yes. However, there are a few more strucutres that thanks to their histological properties can participate in the gas exchange process: respiratory bronchioles, and alveolar ducts.

The most immediate effect would be an increase in heart rate. In addition, regulation of heart rate, contractile state, and conduction of electrical impulses through the heart would be impaired.

The reason for the observed effects are that the vagus nerve carries important information to the heart from a part of the central nervous system called the parasympathetic nervous system. The parasympathetic nervous system is often considered the "rest and digest" system. It decreases heart rate, decreases how strongly the heart contracts with each beat, and decreases the rate at which electrical impulses are conducted through the heart. This is in contrast to the effects of the sympathetic nervous system on the heart; the sympathetic nervous system raises heart rate, force of contraction, and rate of electrical conduction in the heart.

A normal heart does not require information from the parasympathetic and sympathetic nervous systems in order to beat. The heart has an intrinsic pacemaker that allows it to generate heart beats on its own. The heart's pacemaker generates a pace at a rate of about 100 cycles per second, which means that if the heart was to take matters into its own hands (ie, have no innervation), then it would beat at about 100 beats per minute (bpm).

If that's the case, then why do normal adult hearts beat around 70 beats per minute and not 100?

As was hinted at above, normal hearts are innervated by the parasympathetic and sympathetic nervous systems. And both act on the heart at the same time. While you might think that the systems would cancel each other out, it turns out that the heart receives more sympathetic stimulation than parasympathetic stimulation at rest. The result is that the heart is effectively told to reduce the heart rate from the normal 100 bpm to something closer to 70 bpm.

Thus if you take a normal heart at rest that's innervated by both sympathetic and parasympathetic systems, and then sever the vagus nerve, you lose the parasympathetic input to the heart, while leaving the sympathetic input intact. The result is that the resting heart rate increases, to something closer to 100 bpm. ________________________________________________________________________ Cutting the vagus nerve would increase the heart rate. At REST there is more Parasympathetic input to the heart because it slows the heart rate. However during activity there is more sympathetic imput than parasympathetic imput. If all nerves were cut from the heart it would continue to beat in a Ryhmic way because of the electrical system, as demonstrated in heart transplants.

The systemic circulation brings oxygen-filled blood to the body tissues, and returns carbon-dioxide filled blood to the heart. The pulmonary circulation brings carbon-dioxide filled blood to the lungs.

no, because asthma is a disorder in the airways, not the lungs in the first place. when triggered by an irritant, what happens is your windpipe narrows down, and mucus clogs it, causing breathing difficulties, and then an asthma attack. asthma has nothing to do with the lungs - they will still be perfectly normal.

Alveolar means pertaining the the alveolus (plural alveoli), the small air sacs in the lungs.

smoke has carbon dioxide

your body can only take a certain amount of co2

we breathe in oxygen when too much carbon dioxide go into the system it cooks the lungs turning the lung black whereby you will have problems breathing

bronchospy