Cardiovascular Response:
When exercising the muscles requires a constant supply of oxygen, it is the hearts job to make sure there is enough oxygen being pumped round the body for the muscles, the heart has to pump harder and faster as more oxygen is required to get round the body to the muscles in use otherwise they will fatigue quicker. If this is repeated regularly, then over time the heart will become stronger as will become more used to the higher demands. At the start of exercise, the nerves in the brain detect cardiovascular activity. The nerves then send out chemical signals to increase the heart rate, as well as the strength at which the heart is pumping. This means that more red blood cells are pumped around the body which carries
When exercising the muscles requires a constant supply of oxygen, it is the hearts job to make sure there is enough oxygen being pumped round the body for the muscles, the heart has to pump harder and faster as more oxygen is required to get round the body to the muscles in use otherwise they will fatigue quicker. If this is repeated regularly, then over time the heart will become stronger as will become more used to the higher demands. At the start of exercise, the nerves in the brain detect cardiovascular activity. The nerves then send out chemical signals to increase the heart rate, as well as the strength at which the heart is pumping. This means that more red blood cells are pumped around the body which carries