Gymnastics

In P.E we are learning to do gymnastics. I'm not a very flexible person but these past few lessons have been fun because it isn't as bad as I expected. Down below is me holding out my legs along the bars, it isn't much right now, because all this is new to me but I hope I eventually learn how to do a proper handstand by myself. 

Cardio-Vascular system

Cardiovascular system- The cardiovascular system is sometimes called the blood-vascular, or the circulatory, system. It consists of the heart, which is a muscular pumping device, and a closed system of vessels called arteries, veins, and capillaries

Pulse- Your pulse is your heart rate, or the number of times your heart beats in one minute.

Heart- The heart which is shaped like an upside down pear is located under the rib cage, to the left of the breastbone and between the lungs. 

Why do we need blood to be pumped around the body? The purpose of your heart is to pump blood to the organs and tissues of your body that need the oxygen and nutrients it carries. 

Blood pressure- As the blood moves, it pushes against the sides of the blood vessels. The strength of this pushing is your blood pressure. If your blood pressure is too high, it puts extra strain on your arteries and this may lead to heart attacks and strokes.

Why does your pulse increase when you exercise? When you are exercising, your muscles need extra oxygen some three times as much as resting muscles. This need means that your heart starts pumping faster, which makes for a quicker pulse. Meanwhile, your lungs are also taking in more air, hence the harder breathing.