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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

Do fish get lung cancer?

No,they don 't have lungs they have gills

How many lungs do lungfish have?

Lungfish have 2 lungs but the Australian lungfish has 1.

How many vessels does the lung have?

the lungs have 10,000 - 11, 000 vessels in them

Around the wall of each air sac in the lungs web of?

This web is a large 'ball' of capillaries. The millions of tiny alveoli in the human lungs are a very effective adaptation which provides a huge surface area for gaseous exchange into and out of the blood. The alveoli have a very large surface area – in fact if all of the alveoli in your lungs were spread out flat they would cover the area of a tennis court.
This large surface area is the result of all the alveoli being small spheres – it is another example of the importance of the surface area: volume ratio.

What causes air to enter the lungs?

The diaphragm, below the lungs, contracts causing a lower pressure in the lungs, and pulls the air in.

To exhale, the diaphragm relaxes, and the chest muscles contract, forcing the lungs to be smaller and the air to be pushed out.

While having sex, this happens faster as we need more energy. ah! ah! ah! oh! oh!oh!

What does the bronchioles do in the respiratory system?

The bronchi are the tubes which carry air from the trachea to the inner recces of thelungs, where it can transfer oxygen to the blood in the alveoli. Two main bronchi, the right and left bronchus, branch off of the low end of the trachea in what is called the tracheal bifurcation. One bronchus extends into each of the right and left lung. The bronchi continue to divide into smaller passageways, called bronchioles, forming a tree- like network of branches which extends throughout the spongy

Where in the lungs does gas exchange take place?

In the alveoli (also called air sac) is the capillary-rich sac in the lungs where the exchange of oxygen and carbon dioxide takes place by diffusion. The oxygen poor blood goes from the right ventricle and into the lungs where the co2 is traded for Oxygen in the alveoli and back through the heart and out to the body.

What would happen if two lungs were in a single large cavity?

what would happen if lungs were in single large cavity

The prevents food or liquids from getting into the lungs.?

What prevents food from getting into the lungs is an Aorta.

Why do lungs have a surface area of about 60 metres squared and a good supply of blood?

The large surface area and blood supply allow the largest opportunity for diffusion. Both of these factors make it easier for oxygen to move into the bloodstream and CO2 to move out.

What does a nodule in your lung look like?

A lung nodule is an abnormality on your lungs that is smaller than 3cm. Anything larger than 3cm is called a mass. Nodules can be caused by a vast variety of different things. Therefore, the shape of a nodule varies. They can occur inside or outside of the lungs. Most nodules are benign (60%).

Which of the primary bronchi is larger in diameter?

The right primary bronchus is larger in diameter.

Why our body cells have a different oxygen concentration compared to the blood flowing to them from our lungs?

Diffusion from high concentration to low concentration.

  1. The oxygen concentration in the air in the lungs is higher than in the blood.
  2. The oxygen concentration in the blood is higher than in body cells.
If these differences in concentration did not exist oxygen could not move from the air to the blood to body cells. While we are alive body cells consume some of the oxygen they receive, reducing their oxygen concentration and maintaining these differences.

When we die the body cells quit consuming oxygen and over a period of time the levels of oxygen slowly begin evening out (however as blood no longer moves from the lungs to the body oxygen diffusion slows dramatically, leaving some body cells with much lower oxygen levels than would be normal).

What do lungs absorb from the air?

Lungs absorb gases from the air. These include oxygen, carbon dioxide and nitrogen. The oxygen is higher in concentration outside of the lung and so passes into the lung and to the blood. The opposite is true of carbon dioxide. There is much more nitrogen than any other gas but it is passive and the body doesn't make use of nitrogen this way.

Does a koala breathe through its lungs?

Yes. Being mammals, koalas breathe using their lungs and nose.

Koalas have a whole respiratory system just like people - nose, nostrils, respiratory tract, lungs and so on. They don't have gills like fish, holes in their abdomen like insects, or transfer oxygen for carbon dioxide through their skins.