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Structure of the Human Respiratory System
Lungs-gas exchange organ in air-breathing vertebrates and some other animals
Diaphragm-muscle that forms the floor of the chest cavity and separates the lungs from the abdominal cavity
Pleura- two layered membrane that encloses the lungs. One layer touches the lung, the other is in contact with the diaphragm and other organs in the chest cavity. A lubricating fluid between the two allows for the lungs to move freely during breathing.
The Nose- air enters through the nostrils into the nasal passages into capillaries. Hair in the nose prevents foreign matter from entering the air passages.
Pharynx and Larynx- air passes into the pharynx (throat) into the larynx (voice box). Vocal cords are two membranes that are stretched over the larynx and when air is breathed out they vibrate. The epiglottis prevents food and fluid from entering the larynx.
Trachea- "windpipe"- tube about 12cm long. Held open by rings of cartilage.
Structure of the Human Respiratory System, cont.
Bronchi - two cartilage-ringed tubes that divide from the trachea. These enter the lungs and branch into bronchial tubes.
Bronchioles- a group of tiny tubes that have branched from the bronchial tubes whose ends look like a bunch of grapes.
Alveoli- tiny air chambers at the end of the bronchioles that are the respiratory surface. This is where the exchange of air and carbon dioxide takes place.
The lungs contain approximately 300milliion alveoli.
The respiratory system cannot handle smoke. Smoke stops the motion of the cilia that line parts of the respiratory structures and increases the amount of mucus build up in air passages.
Normally, phagocytic macrophages ingest foreign particles, but when increased amounts of particles accumulate from smoking the macrophages can no longer handle the work and damage to lung tissue occurs.
What else can I help you with?
What is an absorptiometer?
An absorptiometer is an instrument which calculates the rate of absorption by measuring the pressure of a gas.
What is the effect of pressure on absorption?
Increasing pressure can enhance the absorption process by forcing more gas molecules into the absorbing material. This is due to the increased concentration of gas molecules that can be dissolved or trapped in the absorbent. However, the effect of pressure on absorption efficiency can vary depending on the specific gas-liquid system and the absorbent material used.
What is the process of absorbing gas through the skin?
The process of absorbing gas through the skin is called dermal absorption. It occurs when gas molecules pass through the skin barrier and into the bloodstream. Factors such as concentration of the gas, duration of exposure, skin health, and temperature can affect the rate of absorption.
What is the Importance of gas absorption is pharmacy?
It is a mass transfer process involving the absorption of gas by a liquid.devices available for gas absorption are packed towers.
Which gas molecules if any are primarily responsible for the absorption of visible light?
In a gross sense, the water vapour in clouds is has the greatest effect.
What tends to speed up the absorption of alcohol fruit punch water or carbonated beverages?
These do not speed up the absorption of alcohol. The typical body processes alcohol at the rate of 1 unit per hour. There is no quick fix for absorption. Although I'm not sure about the effect of fruit punch on alcohol absorption, carbonated beverages DO increase alcohol absorption, I think the previous answer is confusing alcohol absorption with alcohol metabolism. In particular the increased temperature of your body causes the CO2 gas to come out of solution and speeds up alcohol assimilation into the blood stream. Assuming the same amount of alcohol as a non-carbonated beverage, the increased speed of assimilation will increase the rate at which alcohol can go to your body's tissues (with the exception of fat), ALTHOUGH this will not change the rate of your liver's alcohol metabolism.
How does liquid holdup effect the operation of a packed absorption column?
Liquid holdup in a packed absorption column can affect its operation by influencing the contact between the gas and liquid phases. Insufficient liquid holdup may result in poor gas-liquid mass transfer, leading to decreased absorption efficiency. Conversely, excessive liquid holdup can cause flooding and reduced gas flow, limiting the column's capacity and performance.
What are the different types of absorption column?
Major types of Absorption columns are liquid-liquid absorption columns, Gas-liquid absorption columns.
How do oil and gas have any effect on Antarctica?
Because the production of oil and gas contribute to global warming, the ice in Antarctica is melting at a faster than natural rate.
What is hydration and fluid absorption?
As the name suggests,hydra refers to water and hence hydration means absorption of water and fluid absorption means absorption of any liquid or gas. lol
Is it true that a low density gas must be hot in order to produce an absorption line?
No, a low-density gas does not need to be hot in order to produce an absorption line. Absorption lines are formed when atoms in a gas absorb specific wavelengths of light. The presence of these lines does not depend on the temperature of the gas, but rather on the composition and energy levels of the atoms within the gas.
What is a gas turning to a liquid?
Ammonia (it tranforms into ammonium hydroxide by Gas-absorption refrigerator).
