Alveoli

The larynx (voicebox) is responsible for speech in humans, due to vibrations from exhaled air.

The oxygen diffuses into the bloodplasma in the capillaries in the lung, from there it diffuses into the erythrocytes (red blood cells, RBC's) and from there it gets bound to Hemoglobin (haemoglobin).

The diffusion of oxygen can take place because the oxygenconcentration in the bloodplasma is very low (and the same goes vor the erythrocytes). Because of the diffusion eventually the concentration in the air in the alveoli, the bloodplasma and the erythrocytes would become equal and the diffusion would stop. This is where the hemoglobin comes into play, by binding oxygen hemoglobin lowers the concentration of oxygen in the erythrocyte, because of this oxygen from the bloodplasma will diffuse into the erythrocyte thus lowering the concentration in the plasma thus causing more oxygen from the alveoli to diffuse into the bloodplasma. This cycle goes on until the haemoglobin in the erythrocytes if fully saturated, or the blood leaves the lungcapillaries.

Note: bloodplasma, h(a)emoglobin and maybe some other words might not be spelled correctly (but I'm sure they'll sound familliar and you'll know the correct spelling), I'm sorry...

Surfactant reduces the surface tension within in your lungs, your alveoli have a wet surface and if surfactant were not present they would stick together causing a difficulty in expanding your thoracic cavity-so you wouldn't be able to breath without surfactant.

There are about 300 million alveoli in each of your lungs. These tiny air sacs provide an ideal site for the diffusion of gases 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.

At the top of the respiratory system, the nostrils (also called nares) act as the air intake, bringing air into the nose, where it's warmed and humidified. Tiny hairs called cilia protect the nasal passageways and other parts of the respiratory tract, filtering out dust and other particles that enter the nose through the breathed air.

:D hope it helps

Surfactant is the soaplike substance that coats the inner surface of the alveoli. It is composed of phospholipids and proteins and helps to reduce the surface tension within the alveoli, preventing their collapse and aiding in the process of gas exchange in the lungs.

The reason for this is that oxygen and carbon dioxide need to diffuse through this membrane very quickly to re-oxygenate the blood. The thicker the barrier, the longer the process, and since breathing is rather rapid it needs to happen fast.

Alveoli are tiny air sacs in the lungs where oxygen is taken in from the air we breathe and carbon dioxide is released from the blood. They have thin walls that allow for gas exchange between the air and the blood stream, ensuring that oxygen is absorbed and carbon dioxide is expelled from the body during respiration. This process is essential for providing the body with the oxygen it needs for energy production.

Membrane between the alveoli and pulmonary capillaries is called as respiratory membrane. It is thin and has minute pathways between the two sides. This ensures fast mechanism of exchange of gases. Also the surface area is increased due to which gas exchange is maximised.

The term for the amount of moisture in the air is humidity. It is typically expressed as a percentage, with higher values indicating more moisture in the air.

Cappilarisation is where the capillaries in the lungs and surrounding the alveoli increase in numbers, making gaseous exchange in the lungs more efficient so that the respiratory system is more efficient gnereally and during exercise, meaning the heart does not have to work at a higher level to supply nutrients and oxygen to muscles and organs.

The cell membrane, also known as the plasma membrane, covers and protects a cell. It controls what enters and leaves the cell, allowing for communication and maintaining the cell's internal environment.

Alveoli are small air sacs in the lungs, as small as a grain of sand. There are billions of these in the lungs, and the purpose of these alveoli are to supply de-oxygenated blood with a supply of oxygen through gas exchange. They are well-equipped to do this, as well. The first reason is because the cappillaries that the alveoli are supplying with oxygen are spread all over the outside of them, meaning there is more surface area to perform gaseous exchange on. The second reason is because the alveoli walls are only one cell thick, meaning the oxygen only has two cells to go through, the alveoli wall, and the capillary wall.

The circulatory system is a closed loop system. It starts and ends at the heart. The blood doesn't leave the system and is pumped back to the heart to start the journey of the cycle again. The circulatory system runs throughout the body to supply blood to all parts.

One way to expand your butt is too eat a lot of grass. Believe it or not, licking dog poo works as well. But some people take the simple route and just lick their own butt 5 times a day. it works like a charm.

By the way, why would you even want a big butt? Weirdo.

Breathy-Majigger

a open type it is also a cold blooded animal it system is 5 chambered nd help it to circulation in blood.

Three factors are ideal for high gas exchange between bloodstream and alveoli: # Large surface area- Hundreds of thousands of alveoli, each one shaped as a spherical sac, increase the surface area massively to increase the volume gases that can be taken up. # Large concentration grad.- fast-moving blood flow maintains a steep conc. gradient. # Small diffusion distance-The distance for O2 and CO2 is roughly two cells thick ie. 40 micrometres.

When air reaches the alveoli, it undergoes gas exchange, where oxygen from the inhaled air diffuses into the blood in the surrounding capillaries, while carbon dioxide from the blood is transferred into the alveoli to be exhaled. The thin walls of the alveoli facilitate this exchange due to their high surface area and moisture, allowing for efficient diffusion. This process is essential for delivering oxygen to the body's tissues and removing carbon dioxide, a waste product of metabolism.

Seasonal Affective Disorder

You know, the factors of partial pressure

it is tranfered through the alveoli to the red blood cells which Carrie it throughout the human body . when it gets back they remove the CO2 and send it back through the bronchials to be exhaled

Aveoli are part of your respitory system and are located in your lungs, and their function is to give Carbon Dioxide to your lungs (for you to exhale) and take Oxygen from your lungs (to give to the capillaries-your blood). So, the aveoli's, in a sense, filter your bloods oxygen.

Nephrons are part of the excretory system and are located in your kidneys. Their function is to filter your blood by taking out excess salts and waste. So, the nephrons also filter out your blood, but instead of filtering the gasses in your blood, the nephrons filter out the metabolic wastes.

A large surface area