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Lungs

Lungs are a pair of elastic and spongy organs that help the body breathe. They are present inside the rib cage in thoracic cavity of humans.

3,922 Questions

Organelle is associated with cancer?

Which cell organelle is associated with cancer?

Does the lungs control your breathing or your brain control your breathing?

The Brain. To Be Precise, The Medulla Oblongata (The Lower Half of The Brainstem). The Lungs Are Just The Organs That Initiate The Process.

How can PFTs help to distinguish whether a lung disease is obstructive restrictive or both?

In obstructive lung disease airways are narrowed which results in resistance to air flow during breathing. In restrictive lung disease, expansion of the lung is limited by disease that affects the chest wall, pleura, or lung tissue itself.

How are the lungs protected from sudden blows?

the rib cage acts as a shield to protect the lungs from most front forces. however,it is not able to protect the lungs from sharp objects such as a knife.

What happens when you inhale liquid into your lungs?

Inhaling liquid into the lungs, known as aspiration, can lead to serious complications such as aspiration pneumonia, which is an infection caused by bacteria in the aspirated material. The liquid can interfere with normal lung function, causing inflammation and difficulty breathing. Depending on the volume and type of liquid, it can also result in chemical injury to lung tissue. Immediate medical attention is often required to address the situation and prevent further complications.

What is gas exchange in the lungs?

The process in which oxygen enters the bloodstream through the alveolus and carbon dioxide exits the bloodstream also through the same alveolus to be exhaled.

What do insects have instead of lungs?

Insects have, in their abdomen, introverted appendages wich form a ramificated structure called tracheal system. Air enters from lateral openings of the abdomen called spiracles, which can be closed, and then flows into tracheae and tracheols (ramifications of tracheae) reaching the hemocoel, where gas excanges occur.

Do your lungs regenerate after you stop smoking?

Human lungs 'brush' themselves clean of contaminants

Friday, September 07, 2012 by: David Gutierrez, staff writer

Human lungs contain a tiny network of constantly moving "brushes" that flush contaminants out of the respiratory system, according to research conducted by scientists from the University of North Carolina and published in the journal Science.

Scientists have known for a long time that the respiratory system protects itself by means of a coating of mucus, which is sticky enough to trap pollutants and keep them from reaching the body's cells. When needed, the body can expel this mucus through a runny nose or a cough.

"The air we breathe isn't exactly clean, and we take in many dangerous elements with every breath," said lead researcher Michael Rubinstein.

"We need a mechanism to remove all the junk we breathe in, and the way it's done is with a very sticky gel, called mucus, that catches these particles and removes them with the help of tiny cilia. The cilia are constantly beating, even while we sleep.

"In a coordinated fashion, they push mucus, containing foreign objects, out of the lungs, and we either swallow it or spit it out. These cilia even beat for a few hours after we die. If they stopped, we'd be flooded with mucus that provides a fertile breeding ground for bacteria."

But until now, researchers have never understood why the mucus does not stick to or even infiltrate the respiratory cells themselves. The foremost theory, known as the "gel-on-liquid model," posited that an as-yet-undiscovered watery "periciliary" layer kept mucus and cilia separate. The problem with this theory was always that to the best of scientific knowledge, mucus should eventually dissolve into such a watery layer, not remain separate.

"We can't have a watery layer separating sticky mucus from our cells because there is an osmotic pressure in the mucus that causes it to expand in water," Rubinstein says. "So what is really keeping the mucus from sticking to our cells?"

"Gel-on-brush"

To get to the bottom of the mystery, the researchers used modern imaging techniques to examine the interior of the lungs. They found a dense network of brush-like structures that sit atop the cilia. These brushes are composed of protective molecules that keep both mucus and contaminants from getting to the respiratory cells beneath. These molecules also function as a second line of defense against viruses or bacteria that manage to penetrate the mucus.

Stephen Spiro of the British Lung Foundation said the findings could help significantly improve scientific understanding of lung function.

"Mucus has a complex biological make-up and forms a vital part of the lungs' defense mechanism," he said.

"Research such as this helps our understanding [of] how this system works, and of the complex mechanisms deep within our lungs which protect us from the atmosphere we breathe in."

Rubinstein and his fellow researchers noted that their findings may also explain previously mysterious lung disorders from asthma to cystic fibrosis (CF) and chronic obstructive pulmonary disease (COPD). These diseases may stem from a collapse of the protective brushes.

"We found that there is a specific condition, below which the brush is healthy and cells are happy," Rubinstein said. "But above this ideal condition, in diseases like CF or COPD, the brush becomes compressed and actually prevents the normal cilia beating and healthy flow of mucus."

In such conditions, the mucus would then stick directly to the lung's cells.

"The collapse of this brush is what can lead to immobile mucus and result in infection, inflammation and eventually the destruction of lung tissue and the loss of lung function," Rubinstein said. "But our new model should guide researchers to develop novel therapies to treat lung diseases and provide them with biomarkers to track the effectiveness of those therapies."

What disease causes overproduction of mucus in vital organs such as the lungs?

Many different diseases can cause mass production on mucus it's a bodies natural defence mechanism against microorganisms

Are your lungs in your upper back?

your lungs are just inside your ribcage, from the chest in. there is your heart, stomach, spine, some arm muscles, and big arteries and veins between your lungs and your back skin. there is just the ribcage and a couple big blood vessels between the lungs and the chest.

What is the ventricles in your lungs?

Your lungs don't have ventricles.

However your heart has two (a left one and a right one).

The right ventricle receives deoxygenated blood from the body through the right atria and sends it up to the lungs to become oxygenated.

The left ventricle receives oxygenated blood from the lungs through the left atria and sends it out the the systemic circulation to supply the tissues with oxygen.

How much Dr. Batra's charge to remove tar from lungs?

No, but I would advise you to do some research on Dr Batra before you part with your money.

What is a bronchiole dilator?

It is medication taken by an inhauler or hand held nebulizer which helps to open up the bronchi to help people who are having a difficult time with breathing. Most frequently seen in asthma patients.

What is the derivation of the apex of the left lung?

The uppermost point, hence apex...of the lung