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Description
Flashcards by bridget.watts97, updated more than 1 year ago
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Created by bridget.watts97
over 10 years ago
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| Question | Answer |
| What is Aerobic Respiration? | Respiration using oxygen, which releases energy and produces carbon dioxide and water. |
| What is the word and balanced symbol equation for Aerobic Respiration? |
Image:
aerobic.PNG (image/PNG)
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| What is the word and balanced symbol equation for Anaerobic Respiration? |
Image:
aerobic.PNG (image/PNG)
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| Why can't a fish breathe in air? | Because it is not dense enough to push between the gill filaments. |
| What is the Human Thorax? | The chest cavity |
| The trachea... | is a flexible tube, surrounded by rings of cartilage to stop it collapsing. |
| The bronchi... | branches off the trachea. |
| The bronchioles... | branch off a bronchus |
| The lungs... | inhale and exhale air for gas exchange. |
| the alveoli (air sacs)... | is the site of gas exchange. |
| The intercostal muscles... | raise and lower the ribs. |
| The pleural membranes... | protect and lubricate the surface of the lung. |
| The diaphragm... | is a muscular 'sheet' between the thorax and the lung. |
| Where does oxygen enter and leave? | It enters the blood in the lungs and leaves the blood in body tissues. |
| Where does carbon dioxide enter and leave? | It enters the blood in the body tissues and leaves via the lungs. |
| What happens when the intercoastal muscles contract? | The rib cage moves upwards and outwards. The Diaphragm contracts and flattens. Increases the volume of the chest cavity - INSPIRATION! |
| What happens when the intercoastal muscles relax? | The rib cage moves downwards and inwards. The diaphragm also relaxes and moves upwards. This decreases the volume of the chest cavity-EXPIRATION! |
| What is Tidal Air? | The volume of air being breathed in or out in a normal breath. |
| What is Vital Capacity? | It is the maximum volume of air that can be used for gas exchange in the lungs - a maximum breath in followed by a maximum breath out. |
| What is Residual Air? | It is the volume of air that stays in the lungs when we breathe out. |
| Have have the alveoli adapted for gas exchange? | They have a massive surface area, a moist, thin, permeable surface and an excellent blood supply. |
| The trachea and bronchi defend the respiratory system against disease by... | produce mucus to trap dust and microorganisms and are lined with millions of cilia which move the mucus from the lungs into the throat, where it's swallowed. |
| Name 3 types of respiratory diseases | Asbestosis, Asthma, Bronchitis, Cystic Fibrosis, Lung Cancer, Pneumonia. |
| What happens during an asthma attack? | The lining of the bronchioles becomes inflamed, fluid and mucus builds up in the airways and the muscles contract, constricting airways. |
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