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the journey of an oxygen molecule
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the journey of an oxygen molecule
Presented by Jasper
What is an oxygen molecule
Some molecules consist of two atoms of the same element. For example, O2 is the oxygen molecule most commonly found in the earth's atmosphere; it has two atoms of oxygen. However, under certain circumstances, oxygen atoms bond into triplets (O3), forming a molecule known as ozone.
The Start of the Journey
the body needs oxygen molecules to power every single body cell. so the oxygen molecule enters the body through the mouth or the nose. it is now in the respirtary system.
The Start of the Journey
Stage 2....
the oxygen molecules then enter the trachea or the windpipe. this is a hollow, bony tube, this allows the oxygen molecules to pass through it. the trachea connects the nose to the mouth to the lungs. when the oxygen molecules are passing through the windpipe it brushes pass the cilia. this is a short hair like structure. it is responsible for getting bacteria out of the oxygen, this is so the lungs arent filled with unwanted things.
Stage 3 + 4.....
then the trachea leads the oxygen to the bronchus which is located just below trachea. the bronchus is the major air passage of the lungs, it looks like branches. it splits into two and then into further, smaller branches. these are called bronchiles.
Stage 3 + 4.....
Stage 4....
after travelling down the bronchiles the oxygen molecules find that they cant go anywhere due to a dead end. so they enter the aveolis. the aveolis is shaped like a bunch of grapes. this is where the gaseous exchange happens between oxygen and carbon dioxide takes place
Stage 5 + 6
Stage 5 + 6
then the oxygen molecules travel through the capillaries. the capillary absorbs the oxygen molecules and transports them to the blood stream. the red blood cell are red in colour because they contain a chemical called hemoglobin. the deoxygenated blood is being pumped to the heart through pulmunory artery, when at the heart oxygen molecules are added to the blood to make it oxygenated blood. after this it is pumped around the body.
stage 6....
after being pumped around by the heart the oxygen molecule goes to a muscle, for example to the muscles in the arm, the molecule will go to a RBC to produce energy.
stage 6....
Lung Capacity
The average total lung capacity of an adult human male is about 6 litres of air. Tidal breathing is normal, resting breathing; the tidal volume is the volume of air that is inhaled or exhaled in only a single such breath.
Volume and rates
Total lung capacity (TLC) is the maximum lung volume allowed by the strength of the inspiratory muscles stretching the thorax and lungs.
Meanings of different things to do with oxygen molecules
Meanings of different things to do with oxygen molecules
Pathway of Air - this is the airway coming in and out of the lungs
Blood vessels - a tubular structure carrying blood through the tissues and organs; a vein, artery, or capillary.
Structure of the heart - The heart contains 4 chambers: the right atrium, left atrium, right ventricle, and left ventricle. The atria are smaller than the ventricles and have thinner, less muscular walls than the ventricles.
Inspiration - the drawing in of breath; inhalation.
Expiration - the exhalation of breath from the lungs.
Gaseous Exchange - The diffusion of gases from an area of higher concentration to an area of lower concentration, especially the exchange of oxygen and carbon dioxide between an organism and its environment
other useful info...
Tidal volume - The amount of air you breathe in or out with each breath
Inspiratory capacity - The maximum amount you can breathe in (after a normal breath out)
Expiratory reserve volume - After breathing out normally, this is the extra amount you can breathe out
Inspiratory reserve volume - After breathing in normally, this is the extra amount you can breathe in
Vital capacity - The maximum amount of air you could possibly breathe in or out in one breath
Residual volume - The amount of air left in your lungs after you have breathed out as much as possible
Inspiration and expitration
Air moves in and out of the lungs in response to differences in pressure. When the air pressure within the alveolar spaces falls below atmospheric pressure, air enters the lungs (inspiration), provided the larynx is open; when the air pressure within the alveoli exceeds atmospheric pressure, air is blown from the lungs (expiration). The flow of air is rapid or slow in proportion to the magnitude of the pressure difference. Because atmospheric pressure remains relatively constant, flow is determined by how much above or below atmospheric pressure the pressure within the lungs rises or falls.
bibliography
bibliography
https://medlineplus.gov/ency/anatomyvideos/000018.htm
https://www.livescience.com/22616-respiratory-system.html
http://www.innerbody.com/anatomy/respiratory
https://en.wikipedia.org/wiki/Respiratory_system
https://www.britannica.com/science/human-respiratory-system/The-mechanics-of-breathing#ref661840
P.S. these are not all of them