Home » Tests » tahmina173 » Science » Results
Results
What is the function of the circulatory system?
| carries oxgen and glucose in your blood to all your body cells so that energy can be released through aerobic respiration. (by tahmina) |
| For blood to be carried round and round your body in your blood vessels, this blood system transports other usefull things such as; oxygen from your lungs to your cells, food from your gut to you cells and also removes waste chemiclas like carbon dioxide from your cells to you lungs and waste chemicals from your cells to your kidneys. It also transports chemical like hormones, antibodies and blood proteins to all the cells of your bodys. (by Anon) |
| For blood to be carried round and round your body in your blood vessels, this blood system transports other usefull things such as; oxygen from your lungs to your cells, food from your gut to you cells and also removes waste chemiclas like carbon dioxide from your cells to you lungs and waste chemicals from your cells to your kidneys. It also transports chemical like hormones, antibodies and blood proteins to all the cells of your bodys. (by bob) |
| The function of the circulatory system is to transport all the body requirements and take away the waste products from tissues (by Sara) |
| to pump blood around the body (by Quami) |
| to take blood all around the body (by mark) |
| to take blood all around the body (by mark) |
| The thing that works your nerves (by Sam Withers) |
| to take the blood round the body (by michael) |
| carries oxgen and glucose in your blood to all your body cells so that energy can be released through aerobic respiration. (by sanzy) |
why is are blood always under pressure
| this ensures that it reaches all the cells to supply them with oxygen and glucose for respiration (by tahmina) |
| blood is under high pressure because it pumps out of the left ventricle of the heart with great force (by Sara) |
| so that it can reach all the parts of the body fast enough (by Quami) |
| it isnt. only arteries carry bloood under pressure because it has oxygen (by mark) |
| it isnt. only arteries carry bloood under pressure because it has oxygen (by mark) |
| to make its away around the body (by michael) |
what is blood pressure?
| is a measure of the force of blood per unit area as it flows throught he arteries (by tahmina) |
| This is the force exerted by circulating blood on the walls of blood vessels, (by Anon) |
| This is the force exerted by circulating blood on the walls of blood vessels, (by bob) |
| This is the required force which blood flows through blood vessels (by Sara) |
| it is the speed at which blood flows through the blood vessels (by Quami) |
| god nos (by mark) |
| god nos (by mark) |
| the pressure at which your blood travels around your body (by michael) |
what is systolic blood pressure?
| is the pressure in your arteries when your heart contarcts (by tahmina) |
| The systolic arterial pressure is defined as the peak pressure in the arteries, which occurs near the beginning of the cardiac cycle; the diastolic arterial pressure is the lowest pressure (at the resting phase of the cardiac cycle). (by Anon) |
| The systolic arterial pressure is defined as the peak pressure in the arteries, which occurs near the beginning of the cardiac cycle; the diastolic arterial pressure is the lowest pressure (at the resting phase of the cardiac cycle). (by bob) |
| This is the pressure exerted when the heart chamers contract pumping blood out of the heart (by Sara) |
what is diastolic blood pressure?
| is the pressure in your arteries when your heart relaxes (by tahmina) |
| This is the minimum pressure in the arteries between beats when the heart relaxes to fill with blood. (by Anon) |
| This is the minimum pressure in the arteries between beats when the heart relaxes to fill with blood. (by bob) |
| diastolic pressure is when the atrioventicular valves relax and the semilunar valve closes causing blood to flow in the heart (by Sara) |
in the long term why is high blood pressure dangerous?
| the blood vessels can weaken and evetually burst (by tahmina) |
| It would then put strain to arteries and the heart itself. This can cause an artery to rupture or the heart to fail under the strain - in the worst case stopping altogether. (by Anon) |
| It would then put strain to arteries and the heart itself. This can cause an artery to rupture or the heart to fail under the strain - in the worst case stopping altogether. (by bob) |
| it cases the bloodvessels to be permanately damaged.It also increases the risk of heart attacks, strokes (by Sara) |
| it can cause the blood vessels to burst (by Quami) |
| because it demands more oxygen (by mark) |
| because it demands more oxygen (by mark) |
what does low blood pressure mean?
| The force exterted by circulating blood on the walls of blood vessels is below average, which means you heart is working less. (by Anon) |
| The force exterted by circulating blood on the walls of blood vessels is below average, which means you heart is working less. (by bob) |
| It means that blood isnt flowing through the blood vessles with the required force in order to reach all the body tissues (by Sara) |
| it means the blood in the body is not flowing as fast as it should (by Quami) |
what can low blood pressure lead to?
|
|
dizziness,fainting and cold hands and feets |
|
|
high blood pressure |
|
|
migrane |
|
|
cancer |
what is cardiovascular efficiency?
|
|
how well your heart copes with aerobic excercise |
|
|
how well your heart copes with anaerobic excercise |
what is an oxygen debt?
| is the oxygen needed by the body to oxidise the build of lactic acid (by tahmina) |
| One definition of oxygen debt is "where the demand for oxygen is greater than the supply". In practical terms this means that your body is working hard, you are breathing in a lot of oxygen but you cannot absorb enough to cope with the level of activity. If this happens, your body is mainly utilising the anaerobic energy system and as a result, lactic acid builds up as an undesirable waste product. This system can only be sustained for about 60 seconds (depending on the individual) before severe fatigue sets in and you would have to take time to recover. The amount of oxygen "owed" to the body in order to recover is called the oxygen debt. (by Anon) |
| One definition of oxygen debt is "where the demand for oxygen is greater than the supply". In practical terms this means that your body is working hard, you are breathing in a lot of oxygen but you cannot absorb enough to cope with the level of activity. If this happens, your body is mainly utilising the anaerobic energy system and as a result, lactic acid builds up as an undesirable waste product. This system can only be sustained for about 60 seconds (depending on the individual) before severe fatigue sets in and you would have to take time to recover. The amount of oxygen "owed" to the body in order to recover is called the oxygen debt. (by bob) |
| This occurs after anaerobic respiration; glucose is broken down with out oxygen resulting in the formation of lactic acid. It causes a cramp and the body requires extra oxygen to break it down. (by Sara) |
| when your body cannot cope with the oxygen it has and demands more (by mark) |
| when your body cannot cope with the oxygen it has and demands more (by mark) |
what is a pathagen?
| disease causing micro organism (by tahmina) |
| A disease causing micro-organism (by Sara) |
| it is a disease causing organism (by Quami) |
how are diseases like malari spread?
| vectors (by tahmina) |
| they are spread through vectors i.e mosquitoes (by Sara) |
| through open cuts (by mark) |
| through open cuts (by mark) |
what is a vector?
|
|
organism that kills diseases |
|
|
organism that makes bacteria |
|
|
organism that spreads diseases |
what happens if pathagens enter the body?
| the white blood cells start fighting the invasion (by tahmina) |
| They causes illness, the multiply rapidly and affects the normal functioning of tissues (by Sara) |
| they multiply (by Quami) |
| they multiply (by mark) |
| they multiply (by mark) |
what are the symptoms of a disease caused by?
| pathoogens damiging cells and producing toxins before the white blood cells can destroy them (by tahmina) |
what is immunity?
| is a protection against a diesease (by tahmina) |
| This is provinding the body defence against diseases (by Sara) |
what is immunisation
| provides immunity from disease (by tahmina) |
| this is introducing in the blood antibodies (by Sara) |
| it is the (by Quami) |
what is the risk of immunisation?
| an individual can have a bad reaction to the vaccine (by tahmina) |
when does a passive immunity occur?
| when antibodies are put into an individuals body rather than the boby producing them itself (by tahmina) |
how can diseases caused by bacteria or fungi be treated?
what are antibiotics?
| are drugs that kills disease (by tahmina) |
| they are (by Quami) |
what is MRSA?
| mrsa is a bacterua which has become most common to some of the antibitics (by tahmina) |
