1. The circulatory system is made up of the agealcoholAnaemiaanginaantibodiesarteriescapillariesdigitaldiseaseexcessexercisingfailurefatgrouphearthighleukaemialinklowmanometermuscularnutrientsoverweightoxygenpressurepulsepulsometerpumpsrecoverysexshortstethoscopestopwatchstrokessugarveinswastes and the blood vessels. The heart is a agealcoholAnaemiaanginaantibodiesarteriescapillariesdigitaldiseaseexcessexercisingfailurefatgrouphearthighleukaemialinklowmanometermuscularnutrientsoverweightoxygenpressurepulsepulsometerpumpsrecoverysexshortstethoscopestopwatchstrokessugarveinswastes organ that agealcoholAnaemiaanginaantibodiesarteriescapillariesdigitaldiseaseexcessexercisingfailurefatgrouphearthighleukaemialinklowmanometermuscularnutrientsoverweightoxygenpressurepulsepulsometerpumpsrecoverysexshortstethoscopestopwatchstrokessugarveinswastes blood around the body.

2. The three main types of blood vessels are arteries, veins and agealcoholAnaemiaanginaantibodiesarteriescapillariesdigitaldiseaseexcessexercisingfailurefatgrouphearthighleukaemialinklowmanometermuscularnutrientsoverweightoxygenpressurepulsepulsometerpumpsrecoverysexshortstethoscopestopwatchstrokessugarveinswastes. Blood is carried away from the heart in agealcoholAnaemiaanginaantibodiesarteriescapillariesdigitaldiseaseexcessexercisingfailurefatgrouphearthighleukaemialinklowmanometermuscularnutrientsoverweightoxygenpressurepulsepulsometerpumpsrecoverysexshortstethoscopestopwatchstrokessugarveinswastes and back to the heart in agealcoholAnaemiaanginaantibodiesarteriescapillariesdigitaldiseaseexcessexercisingfailurefatgrouphearthighleukaemialinklowmanometermuscularnutrientsoverweightoxygenpressurepulsepulsometerpumpsrecoverysexshortstethoscopestopwatchstrokessugarveinswastes. Capillaries are tiny blood vessels found in body tissues. They form a agealcoholAnaemiaanginaantibodiesarteriescapillariesdigitaldiseaseexcessexercisingfailurefatgrouphearthighleukaemialinklowmanometermuscularnutrientsoverweightoxygenpressurepulsepulsometerpumpsrecoverysexshortstethoscopestopwatchstrokessugarveinswastes allowing blood to flow from arteries to veins.


3. Blood carries agealcoholAnaemiaanginaantibodiesarteriescapillariesdigitaldiseaseexcessexercisingfailurefatgrouphearthighleukaemialinklowmanometermuscularnutrientsoverweightoxygenpressurepulsepulsometerpumpsrecoverysexshortstethoscopestopwatchstrokessugarveinswastes, oxygen, agealcoholAnaemiaanginaantibodiesarteriescapillariesdigitaldiseaseexcessexercisingfailurefatgrouphearthighleukaemialinklowmanometermuscularnutrientsoverweightoxygenpressurepulsepulsometerpumpsrecoverysexshortstethoscopestopwatchstrokessugarveinswastes and waste round the body. Capillaries are thin-walled and therefore allow nutrients and agealcoholAnaemiaanginaantibodiesarteriescapillariesdigitaldiseaseexcessexercisingfailurefatgrouphearthighleukaemialinklowmanometermuscularnutrientsoverweightoxygenpressurepulsepulsometerpumpsrecoverysexshortstethoscopestopwatchstrokessugarveinswastes in the blood out to the tissues and carbon dioxide and agealcoholAnaemiaanginaantibodiesarteriescapillariesdigitaldiseaseexcessexercisingfailurefatgrouphearthighleukaemialinklowmanometermuscularnutrientsoverweightoxygenpressurepulsepulsometerpumpsrecoverysexshortstethoscopestopwatchstrokessugarveinswastes to pass from the tissues into the blood.

4. Each time the heart beats, it pushes blood into the arteries making them swell. This movement is called agealcoholAnaemiaanginaantibodiesarteriescapillariesdigitaldiseaseexcessexercisingfailurefatgrouphearthighleukaemialinklowmanometermuscularnutrientsoverweightoxygenpressurepulsepulsometerpumpsrecoverysexshortstethoscopestopwatchstrokessugarveinswastes. It can be measured using high-tech instruments such as a agealcoholAnaemiaanginaantibodiesarteriescapillariesdigitaldiseaseexcessexercisingfailurefatgrouphearthighleukaemialinklowmanometermuscularnutrientsoverweightoxygenpressurepulsepulsometerpumpsrecoverysexshortstethoscopestopwatchstrokessugarveinswastes or a heart rate monitor or low-tech instruments such as a stethoscope and a agealcoholAnaemiaanginaantibodiesarteriescapillariesdigitaldiseaseexcessexercisingfailurefatgrouphearthighleukaemialinklowmanometermuscularnutrientsoverweightoxygenpressurepulsepulsometerpumpsrecoverysexshortstethoscopestopwatchstrokessugarveinswastes.

5. A person’s pulse rate depends on several factors such as their size, agealcoholAnaemiaanginaantibodiesarteriescapillariesdigitaldiseaseexcessexercisingfailurefatgrouphearthighleukaemialinklowmanometermuscularnutrientsoverweightoxygenpressurepulsepulsometerpumpsrecoverysexshortstethoscopestopwatchstrokessugarveinswastes, agealcoholAnaemiaanginaantibodiesarteriescapillariesdigitaldiseaseexcessexercisingfailurefatgrouphearthighleukaemialinklowmanometermuscularnutrientsoverweightoxygenpressurepulsepulsometerpumpsrecoverysexshortstethoscopestopwatchstrokessugarveinswastes and level of fitness. A high resting pulse rate may lead to heart agealcoholAnaemiaanginaantibodiesarteriescapillariesdigitaldiseaseexcessexercisingfailurefatgrouphearthighleukaemialinklowmanometermuscularnutrientsoverweightoxygenpressurepulsepulsometerpumpsrecoverysexshortstethoscopestopwatchstrokessugarveinswastes.

6. The time taken for pulse rate to return to normal after exercise is called agealcoholAnaemiaanginaantibodiesarteriescapillariesdigitaldiseaseexcessexercisingfailurefatgrouphearthighleukaemialinklowmanometermuscularnutrientsoverweightoxygenpressurepulsepulsometerpumpsrecoverysexshortstethoscopestopwatchstrokessugarveinswastes time. A combination of agealcoholAnaemiaanginaantibodiesarteriescapillariesdigitaldiseaseexcessexercisingfailurefatgrouphearthighleukaemialinklowmanometermuscularnutrientsoverweightoxygenpressurepulsepulsometerpumpsrecoverysexshortstethoscopestopwatchstrokessugarveinswastes resting pulse rate and agealcoholAnaemiaanginaantibodiesarteriescapillariesdigitaldiseaseexcessexercisingfailurefatgrouphearthighleukaemialinklowmanometermuscularnutrientsoverweightoxygenpressurepulsepulsometerpumpsrecoverysexshortstethoscopestopwatchstrokessugarveinswastes recovery time may indicate high level of fitness. Resting pulse rate and recovery time can be reduced by agealcoholAnaemiaanginaantibodiesarteriescapillariesdigitaldiseaseexcessexercisingfailurefatgrouphearthighleukaemialinklowmanometermuscularnutrientsoverweightoxygenpressurepulsepulsometerpumpsrecoverysexshortstethoscopestopwatchstrokessugarveinswastes regularly.

7. Blood that has been pumped into arteries is under pressure. This blood agealcoholAnaemiaanginaantibodiesarteriescapillariesdigitaldiseaseexcessexercisingfailurefatgrouphearthighleukaemialinklowmanometermuscularnutrientsoverweightoxygenpressurepulsepulsometerpumpsrecoverysexshortstethoscopestopwatchstrokessugarveinswastes can be measured using low-tech instruments called agealcoholAnaemiaanginaantibodiesarteriescapillariesdigitaldiseaseexcessexercisingfailurefatgrouphearthighleukaemialinklowmanometermuscularnutrientsoverweightoxygenpressurepulsepulsometerpumpsrecoverysexshortstethoscopestopwatchstrokessugarveinswastes and mercury agealcoholAnaemiaanginaantibodiesarteriescapillariesdigitaldiseaseexcessexercisingfailurefatgrouphearthighleukaemialinklowmanometermuscularnutrientsoverweightoxygenpressurepulsepulsometerpumpsrecoverysexshortstethoscopestopwatchstrokessugarveinswastes or a high-tech instrument called a agealcoholAnaemiaanginaantibodiesarteriescapillariesdigitaldiseaseexcessexercisingfailurefatgrouphearthighleukaemialinklowmanometermuscularnutrientsoverweightoxygenpressurepulsepulsometerpumpsrecoverysexshortstethoscopestopwatchstrokessugarveinswastes sphygmomanometer. A normal average upper value for blood pressure would be 120 and a lower value would be 80 (written as 120/80 for short). Readings over 160/90 indicate agealcoholAnaemiaanginaantibodiesarteriescapillariesdigitaldiseaseexcessexercisingfailurefatgrouphearthighleukaemialinklowmanometermuscularnutrientsoverweightoxygenpressurepulsepulsometerpumpsrecoverysexshortstethoscopestopwatchstrokessugarveinswastes blood pressure.



8. High blood pressure can be caused by : being agealcoholAnaemiaanginaantibodiesarteriescapillariesdigitaldiseaseexcessexercisingfailurefatgrouphearthighleukaemialinklowmanometermuscularnutrientsoverweightoxygenpressurepulsepulsometerpumpsrecoverysexshortstethoscopestopwatchstrokessugarveinswastes, not taking enough exercise, eating a diet containing too much agealcoholAnaemiaanginaantibodiesarteriescapillariesdigitaldiseaseexcessexercisingfailurefatgrouphearthighleukaemialinklowmanometermuscularnutrientsoverweightoxygenpressurepulsepulsometerpumpsrecoverysexshortstethoscopestopwatchstrokessugarveinswastes or salt or drinking alcohol to agealcoholAnaemiaanginaantibodiesarteriescapillariesdigitaldiseaseexcessexercisingfailurefatgrouphearthighleukaemialinklowmanometermuscularnutrientsoverweightoxygenpressurepulsepulsometerpumpsrecoverysexshortstethoscopestopwatchstrokessugarveinswastes. High blood pressure can lead to agealcoholAnaemiaanginaantibodiesarteriescapillariesdigitaldiseaseexcessexercisingfailurefatgrouphearthighleukaemialinklowmanometermuscularnutrientsoverweightoxygenpressurepulsepulsometerpumpsrecoverysexshortstethoscopestopwatchstrokessugarveinswastes, heart attacks and agealcoholAnaemiaanginaantibodiesarteriescapillariesdigitaldiseaseexcessexercisingfailurefatgrouphearthighleukaemialinklowmanometermuscularnutrientsoverweightoxygenpressurepulsepulsometerpumpsrecoverysexshortstethoscopestopwatchstrokessugarveinswastes. Low blood pressure can indicate heart agealcoholAnaemiaanginaantibodiesarteriescapillariesdigitaldiseaseexcessexercisingfailurefatgrouphearthighleukaemialinklowmanometermuscularnutrientsoverweightoxygenpressurepulsepulsometerpumpsrecoverysexshortstethoscopestopwatchstrokessugarveinswastes.

9. Blood can be tested to detect several medical conditions. Infection is indicated by the presence of agealcoholAnaemiaanginaantibodiesarteriescapillariesdigitaldiseaseexcessexercisingfailurefatgrouphearthighleukaemialinklowmanometermuscularnutrientsoverweightoxygenpressurepulsepulsometerpumpsrecoverysexshortstethoscopestopwatchstrokessugarveinswastes. agealcoholAnaemiaanginaantibodiesarteriescapillariesdigitaldiseaseexcessexercisingfailurefatgrouphearthighleukaemialinklowmanometermuscularnutrientsoverweightoxygenpressurepulsepulsometerpumpsrecoverysexshortstethoscopestopwatchstrokessugarveinswastes is indicated by a low iron content, diabetes by a high level of agealcoholAnaemiaanginaantibodiesarteriescapillariesdigitaldiseaseexcessexercisingfailurefatgrouphearthighleukaemialinklowmanometermuscularnutrientsoverweightoxygenpressurepulsepulsometerpumpsrecoverysexshortstethoscopestopwatchstrokessugarveinswastes and agealcoholAnaemiaanginaantibodiesarteriescapillariesdigitaldiseaseexcessexercisingfailurefatgrouphearthighleukaemialinklowmanometermuscularnutrientsoverweightoxygenpressurepulsepulsometerpumpsrecoverysexshortstethoscopestopwatchstrokessugarveinswastes by an abnormally high white blood cell count.

10. Before being used for a blood transfusion, blood has to be tested to find out its blood agealcoholAnaemiaanginaantibodiesarteriescapillariesdigitaldiseaseexcessexercisingfailurefatgrouphearthighleukaemialinklowmanometermuscularnutrientsoverweightoxygenpressurepulsepulsometerpumpsrecoverysexshortstethoscopestopwatchstrokessugarveinswastes since some blood groups clump in the presence of others instead of mixing freely. Blood is also tested for agealcoholAnaemiaanginaantibodiesarteriescapillariesdigitaldiseaseexcessexercisingfailurefatgrouphearthighleukaemialinklowmanometermuscularnutrientsoverweightoxygenpressurepulsepulsometerpumpsrecoverysexshortstethoscopestopwatchstrokessugarveinswastes concentration in cases of suspected drunk driving.

agealcoholAnaemiaanginaantibodiesarteriescapillariesdigitaldiseaseexcessexercisingfailurefatgrouphearthighleukaemialinklowmanometermuscularnutrientsoverweightoxygenpressurepulsepulsometerpumpsrecoverysexshortstethoscopestopwatchstrokessugarveinswastes