Question

what happens if lungs dont expand normally ?
@Abhisar

Answer 1

'What Is Atelectasis?
Atelectasis (at-uh-LEK-tuh-sis) is a condition in which one or more areas of your lungs collapse or don't inflate properly. If only a small area or a few small areas of lung are affected, you may have no signs or symptoms.

If a large area or several large areas of lung are affected, they may not be able to deliver enough oxygen to your blood. This can cause symptoms and complications.

Overview
To understand atelectasis, it helps to understand how the lungs work. Your lungs are organs in your chest that allow your body to take in oxygen from the air. They also help remove carbon dioxide (a waste gas that can be toxic) from your body.

When you breathe, air passes through your nose and mouth into your windpipe. The air then travels to your lungs' air sacs. These sacs are called alveoli (al-VEE-uhl-eye).

Small blood vessels called capillaries (KAP-ih-lare-ees) run through the walls of the air sacs. When air reaches the air sacs, oxygen passes through the air sac walls into the blood in the capillaries. At the same time, carbon dioxide moves from the capillaries into the air sacs. This process is called gas exchange.

The air sacs must remain open and filled with air for gas exchange to work well. Surfactant (sur-FAK-tant), a liquid that coats the inside of the lungs, helps the air sacs stay open. Deep breathing and coughing also help keep the air sacs open. (Coughing helps clear mucus and other substances from your airways.)

In atelectasis, part of the lung collapses or doesn't inflate. The air sacs in that part of the lung no longer fill with air. As a result, they can't take part in gas exchange.

If only a small area or a few small areas of lung are affected, you may have no signs or symptoms. This is because the rest of the lung can bring in enough oxygen to make up for the collapsed part.

If atelectasis affects a large area or several large areas of lung, your body's organs and tissues might not get enough oxygen-rich blood.

Conditions and factors that keep the lungs from fully expanding and filling with air can cause atelectasis. For example, atelectasis is common after surgery.

The medicine used during some types of surgery to make you sleep can decrease or stop your normal effort to breathe and urge to cough. Sometimes, especially after chest or abdominal surgery, pain may keep you from taking deep breaths. As a result, part of your lungs may collapse or not inflate well.

Outlook
The outlook for atelectasis depends on its cause. In adults, atelectasis often is short term. The collapsed air sacs slowly refill with air once the cause of the atelectasis is resolved.

If atelectasis persists, it may prevent the lungs from properly clearing mucus. This can lead to infections, such as pneumonia.

Atelectasis usually isn't life threatening. However, if it affects a large area of the lungs—especially in a baby, small child, or someone who has another lung disease or illness—it can be fatal if not treated quickly.

Answer 2

hmmm... i got it ...
i case scuba divers wen they decend in sea pressure of his body normal expansion of lungs... i understood than The air sacs in lung no longer fill with air properly. As a result, a proper gas exchange of gases wil not take place....
point cleared :)
next is to compensate, the diver breaths presurized air from air cylinders, which have greater pressure than sea level air pressure..

how this pressurized air compensates the diver ?

Answer 3

@gg54

Answer 4

What the heck?!

Answer 5

ignored :/

Answer 6

lol I type very very fast

Answer 7

hahha :P

Answer 8

no i'm not kidden

Answer 9

realy ... ? :/

Answer 10

yes

Answer 11

very very fast

Answer 12

and i'[m only in 7th

Answer 13

strange

Answer 14

gt5ader

Answer 15

okn typ the nxt answer in 1 sec :D

Answer 16

not really

Answer 17

ok

Answer 18

gHaving scientific literacy involves being able to
ask scientific questions.
evaluate scientific information.
understand scientific terms.
all of the above

Answer 19

there

Answer 20

grt

Answer 21

ya

Answer 22

i wana do it too...impressed

Answer 23

:P

Answer 24

♥

Answer 25

but u dudnt answerd my question road runner :)

Answer 26

yes I did

Answer 27

at the top

Answer 28

bye

Answer 29

hmmm... i got it ...
i case scuba divers wen they decend in sea pressure of his body normal expansion of lungs... i understood than The air sacs in lung no longer fill with air properly. As a result, a proper gas exchange of gases wil not take place....
point cleared :)
next is to compensate, the diver breaths presurized air from air cylinders, which have greater pressure than sea level air pressure..

how this pressurized air compensates the diver ?

Answer 30

this 1

Answer 31

A buoyancy compensator also called a buoyancy control device, BC, BCD, stabilizer, stabilisor, stab jacket, wing or ABLJ depending on design, is a piece of diving equipment containing a bladder which is worn by divers to establish neutral buoyancy underwater and positive buoyancy on the surface, when needed. The buoyancy is controlled by adjusting the volume of air in the bladder.The bladder is filled with gas from the diver's air tank or from the diver's mouth.

Answer 32

now bye

Answer 33

haha bye thnkkoooo

Answer 34

Copy-Paste.