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Respiratory system

What is the respiratory system Our bodies required oxygen for metabolic reactions
What is the dual purpose of the respiratory system Consumption and utilisation of oxygen and the elimination of carbon dioxide
What are the three functions of the nasal passage? Filter, warm and moisten
How does our nose filter air which enters Mucus is a sticky substance which blocks bacteria entering our bodies
How does our nasal passage heat up The blood vessels that pass through the lining of the nose
What moistens our nose Water vapour
What is a ciliates membrane It filters and traps dust particles by sending them to the throat for elimination
What is our epiglottis Prevents food passing down our trachea
What is the trachea also known as Windpipe
What hold the trachea open Rings of cartilage
What is the function of the trachea Main airway to lungs
What are bronchi Tubes which come from trachea
Bronchi split into smaller tubes, what are these called? Bronchioles
What are alveoli? Small air sacs attached to bronchioles that allow gas exchange to happen
What is the structure of alveoli Thin walled and spongy
What surround the alveoli Capillaries
What gas passes from alveoli into the capillaries Oxygen
What gas passes from capillaries to alveoli Carbon dioxide
Why does the left lung only have two lives while the right one has three It has to create space for the heart
Why does the diaphragm sit higher on the right side The liver sits directly below
What is the double membrane called that surround the lungs Pleural membrane
What is the lining on the inside of the pleural membrane called Visceral pleura
What is the lining on the outside of the pleural membrane called Parietal pleura
How does the pleural membrane help the expansion and contraction of the lungs A fluid is released
Before inspiration, what is the pressure inside the lungs compared to outside Equal
When we breathe air in, does the volume become higher or lower than atmospheric pressure Lower
What happens to the volume size of the lungs when we breathe in Increases
What does internal respiration mean Exchange of gases between cells and blood
What does external respiration mean? Movement of gases in and out of lungs between lungs and blood
What does pulmonary respiration mean Movement in and out of lungs
What gas passes from our blood to our cells Oxygen
What products pass from our cells to our blood Carbon dioxide and water
What do our capillaries merge with after gas exchange has taken place Venules
What is the reason for the merge of capillaries and venules To carry waste in veins back to the heart to be pumped to lungs and breathed out
What is respiratory gas transportation The movement of oxygen and carbon dioxide between the lungs and the tissue cells of the body
What is the average breathing rate for a healthy adult 12 respiration’s per minute
What controls our breathing rates The respiratory centre in our brains
What assists our brains with breathing rates The diaphragm, intercostal muscles and stretch receptors found in the walls of the bronchioles and alveoli
What is anaerobic respiration Exercising during the absence of oxygen
What is the substance produced when oxygen is used up in our bodies Lactic acid
What does lactic acid do? Eventually slows down our bodies and stops the muscles from working
When our breathing rate increases, what does it help to breakdown Lactic acid into carbon dioxide and water
What is tidal volume The volume inspired and expired per breath
What is vital capacity Maximum volume forcefully expired after maximal inspiration
What is total lung capacity The total volume our lungs can hold after maximum inspiration
What is residual volume The volume remaining at the end of maximal expiration
What is minute ventilation The volume of air inspired and expired per minute
Dead space Volume of air in the trachea that does not take part in gas exchange
How do you work out your total lung capacity The vital capacity and the residual volume added together
Created by: 3ilidh_4
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