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33 Cards in this Set
- Front
- Back
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The circulatory system comprises of: |
A closed network of vessels (arteries, veins and capillaries) A pump (the heart) Bloody he |
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The circulatory system: |
Transports food, oxygen and water to cells Removes waste products - CO2, lactic acid Is closely linked to the respiratory and digestive systems |
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What shape is the heart? |
Coned |
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Where does the heart lie |
Between the lungs in the thoracic cavity in the mediastinum |
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The approximate size of the heart is? |
The size of the persons own clenched fist |
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The heart is superior to? |
The diaphragm |
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The heart is posterior to |
The sternum and slightly left of midline |
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How many atria and ventricles does the heart have? |
2 of each |
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Pulmonary circulation |
Right side of heart - sends de-oxygenated blood returning from the body to the lungs |
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Systemic circulation |
Left side of heart - sends oxygenated blood returning from the lungs to the body |
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What is number 1 |
Superior vena cava |
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What is number 2 |
Pulmonary valve |
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What is 3 |
Tricuspid valve |
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What is 4 |
Inferior vena cava |
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What is 5 |
Pulmonary Artery |
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What is 6 |
Pulmonary vein |
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What is 7 |
Mitral valve |
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What is 8 |
Aortic valve |
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What is 9 |
Right Atrium |
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What is 10 |
Right ventricle |
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What is 11 |
Left ventricle |
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What is 12 |
Left atrium |
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What is 13 |
Aorta |
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What is 14 |
Pericardium |
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What do the valves in the veins in the lower limbs do? |
Prevent back flow |
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What are capillaries |
The smallest and most numerous of blood vessels |
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How thick are capillaries? |
One epithelial cell (endothelium) |
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What do capillaries do? |
Semi-permeable - allowing for easy movement of gases, nutrients and waste products between blood and the cells of the tissues |
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When checking for pulses what do you use? |
The pads of your fingers and not the thumb - it has its own pulse! |
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Where are the main pulse sites? |
Carotid Brachial Radial Femoral Pedal |
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What is the main function of the electrical conduction system? |
Create an electrical impulse and transmit it in an organised manner to the rest of the heart muscle (myocardium) |
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Where is the electrical conduction system found? |
In the walls of the heart |
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What is displayed on an ECG? |
The electrochemical process that creates electrical energy |
