components of fitness
cardio vascular endurance- the ability to pump oxygen around the heart for a long period of time.
flexibility-the range of movement around a joint
agility-the ability to change direction at a speed
co ordination- the ability to move two or more body parts at the same time in a controled manner
reaction time- the ability to respond to an external stimlus quickly
muscular endurance-the ability to use a muscle or a group of muscles for a long period of time
power- the combination of strent and speed
strenth- the ability to exert a maximum force
balance- the ability to maintain the center of mass over a fixed point
the circulatory system
This is where the red blood cells pick up oxygen from the lungs as the red blood cells contain hemoglobin which turns to oxyhemaglobin when the oxygen is picked up. this then gets transported throught the LEFT side of the heart. Then it gets taken throughout the body and the oxygen gets used up in which ever muscles need it most, the deoxygenated blood then gose throught the RIGHT side of the heart and back to the lungs to pick up more oxygen.
*the circulatory system is a cycle, in an exam it doesnt matter which part of the cycle you start at as long as you explain the full cycle.