Alveoli

It gets absorbed into your lungs. My dad once took a white shirt and breathed into it and the shirt turned black were he breathed. It coats the cillia, the small hairs in your lungs, and stops them from being able to absorb as much oxygen. That's why smokers, including myself, get out of breath easier.

Alveoli are tiny sacs of air located in your lungs. There are millions of them in your lungs, and they fill up with oxygen when you inhale. They greatly increase the surface area of the lungs so that more oxygen can enter your bloodstream.

The process is usually referred to as diffusion. This happens when concentrations in different areas interchange to give a more even mixture. Going through a membrane ( in this case the lung's alveoli wall ) would more properly require the process to be called osmosis, but that term is not usually used medically.

Oxygen is transfered into the blood at alveoli. Oxygen travels along the pulmonary vein into the left ventricle of the heart. It then travels along the aorta to the body tissues, gathering impure blood (CO2) along the way. Travels back to the heart via the Vena Cava and all impure blood is emptied into the right atrium of the heart, before it travels back to the lungs via the pulmonary artery.

external respiration. or a difference in surrounding pressures of the fulids

Cilia are hair like structures that brush away particles in your lungs. When you smoke dust, pollen and other particles get stuffed into them and sit there. If they are there for a long time they form tar.

oxygen and carbon dioxide

type 1 squamous epithelial cells

type 2 cuboid epithelial cells

macrophages

1. External Nares

2. Vestibule

3. Internal Nares

4. Nasopharynx

5. Oropharynx

6. Laryngopharynx

7. Larynx

8. Trachea

9. Primary Bronchus

10.Secondary Bronchus

11.Tertiary Bronchus

12.Bronchioles

13.Terminal Bronchiole

14.Respiratory Bronchiole

15.Alveolar Duct

16.Alveolar Sac

17.Alveolus

The smallest blood vessels of the body = capillaries

It allows for rapid diffusion of gasses.

Smoking affects the alveoli in the lungs because when the red blood cells absorb oxygen into the alveoli when the smoke is mixing with the clean oxygen it becomes unhealthy for your lungs and dangerous.

The Diffusion is the exchange of oxygen (O2) and carbon dioxide (CO2) between the alveoli and the blood. So blood that is pumping through the capillaries in the lungs has a low concentration of O2 and a high concentration of CO2, in the alveoli it is high concentration O2 low concentration CO2. Therefore the 2 gases exchange across the alveoli membrane by diffusion trying to establish a concentration gradient.

To allow passage of materials by diffusion and filtration in sites where protection is not important; secretes lubricating substances in serosae.

The difference in the partial pressure of the gases in the blood coming to the lungs and the alveoli mediated the gas exchange. Without this difference we wont be able to breathe. Diaphragm in the thoracic cavity plays an important role in exchange of these respiratory gases.

gas exchanging

Damaged air sacs have a lower amount of air surface. This reduces the amount of gas exchanged because the larger the surface the larger the amount.

The lungs will not be able to process enough oxygen to keep the body working, and the person will die unless given supplemental oxygen. Emphysema (damaged alveoli) is a progressively debilitating disease.

Human lungs are lined with small hairs called cillia, which move foreign bodies and toxic particles out of the lungs, keeping them clean. Nicotine in tobacco smoke causes the cillia to stop working, which in turn causes the lungs to build up with debris, which interferes with the functioning of the lungs. Also, tar from cigarette smoke accumulates in the lungs and prevents the lungs from completely filling with air. Over time, tar and other foreign deposits in the lungs can disintegrate the organs' tissue, preventing normal breathing. The good news is that, once a person stops smoking, the cillia will regenerate and function normally.

The primary function of the respiratory system is to supply the blood with oxygen in order for the blood to deliver oxygen to all parts of the body. The respiratory system does this through breathing. When we breathe, we inhale oxygen and exhale carbon dioxide. This exchange of gases is the respiratory system's way of getting oxygen to the blood.

The alveolus is a very thin walled structure that allows the gases to cross easily. This is assisted by the presence of surfactant a substance that reduces the surface tension in the alveolus making it even easier to cross.

I kinda wanna poop all over you right now

No, the cartilage rings are on the bronchi. see this website, it might clear some things up.

http://ect.downstate.edu/courseware/histomanual/respiratory.html

False

i dont noww , alveoli is stupid

If you didn't have Alveoli than you wouldn't live very long. Alveoli allow oxygen to enter the bloodstream, so without them you'd die within the first few minutes of your life.