Lungs

The condition is called emphysema (literally, swelling).

The condition is part of COPD (chronic obstructive pulmonary disease) and results from the destruction of the supporting structures of the lung. This prevents the normal exchange of oxygen in the alveoli. Smoking introduces tar residue into the lungs that causes significant tissue damage.

These tiny air sacs are called alveoli. These alveoli are surrounded by capilaries tiny blood vessells. These capilaries have holes that are to small for blood cells to escape but are big enogh for oxygen molecules to pass in to the blood stream and attach to the haemoglobin in your blood.

I assume you're asking how the heart delivers blood to the lungs and back to the heart.

When your heart beats, deoxygenated blood is delivered to the right atrium via the superior vena cava and inferior vena cava, which are large veins. The right atrium then pumps the blood to the right ventricle which pumps it to the lungs for oxygenation via the pulmonary artery. Cellular respiration occurs in the lungs and your blood becomes saturated with the oxygen you're breathing and gets rid of its waste product (Co2) when you exhale. The now oxygenated blood gets pumped back to the heart via the pulmonary vein and enters the left atrium. The left atrium pumps it to the left ventricle and the left ventricle pumps it to the ascending and descending aorta, which delivers it to the rest of your body and organs.

As your diaphragm expands, the pressure in your thoracic cavity decreases. Air rushes into the partial vacuum, and you inhale.

Bronchioles are part of the respiratory system and branch from the bronchus. Air from the bronchus enters the terminal bronchioles that terminate in air sacs known as alveoli.

Alveoli, (from Latin alveoli, "little cavities") are an anatomical structure which have the form of hollow cavities. Found in the lung, the pulmonary alveoli are spherical extensions of the respiratory bronchioles (small air passages leading off the windpipe) and are the primary sites of gas exchange with the blood. Alveoli are only found in the lungs of mammals.

The more little sacs you have, the more surface area there is - and more surface area means more spots for oxygen to enter the blood system.

the alveoli
The oxygen in the lungs goes in to alveoli, which have a large surface area so that the oxygen can diffuse (spread out into) the capillaries surrounding the lungs.

It is part of the reproductive system. it is the opening to the birth canal

The Hering-Breuer reflex

You can tell if its a right lung or not simply by looking at two structures. The right lung has three lobes and the left only two. Also, the heart is more towards the left side of the body so there is a bigger "indent" on the left lung.

A smokers lungs are black and covered in a yellowish substance called infection. Once a smoker stops smoking, there lungs begin to heal themselves. The longer you stay not smoking the better your lungs will get.

atelectasis

Particles can get into the lungs and can damage them or they can make the airways swell up and make it difficult to breath. Some types of pollution, like ciggarete smoke, can hurt the cells in the lungs

bronchi and brochioles provide air to the lung. They carry both oxygen and co2.

The respiratory system.

i have come out in a rash all over my body can it be related to hermesetas i took it for the first time yesterday?

Men have larger lung capacities than women. Tall people also have larger lung capacities than short people. It is said that people aged 20-25 have larger lung capacities than other age groups, Its because by the time you have reached your twenties your lungs have reached their full capacity, but when you are a kid then your lungs aren't fully developed so they don't have a large capacity. From when you are 20 your lung capacity starts going down so an old man has about the same lung capacity as a very small boy.

Red blood cells pick up oxygen and deposit carbon dioxide at the lungs

When you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. This increases the space in your chest cavity, into which your lungs expand. The intercostal muscles between your ribs also help enlarge the chest cavity. They contract to pull your rib cage both upward and outward when you inhale.

As your lungs expand, air is sucked in through your nose or mouth. The air travels down your windpipe and into your lungs. After passing through your bronchial tubes, the air finally reaches and enters the alveoli (air sacs).

No, they are not. They are lateral to the heart.

I know this from experience weed does not do any bad effects to your health... unless you become obsessed with it then it can cause memory loss and other bad effects to you. but don't worry unless you smoke it every like 3 hours every day for more then a year it wont do much other then get you high.

However there are very serious dangers. unless you are in a state where weed is legalized or somewhere else where it is legal it can get you arrested fined etc. if you smoke unlike what most people say it wont **** up your life as long as you don't over use it. also beware it can be a very costly habit, it's not physically addicting however if you smoke to much you may get mentally addicted where you cant do normal activities it might also causes depression or suicide. but don't worry about it that's only if you over use weed alot!!!!!!!!!!!!!! like i said before

Caffeine works by constricting the blood vessels and increasing the heart rate.

You can live off of one lung. There is proof of this from cancer patients. Also though it depends on if you have the object that penetrated the lunbg taken out and for how long, how deep and the circustances of the object penetrated. And you could bleed to death of basically 'sufacate' to death from the blood filling y uor lung.

Pulomonary vein