they help make carbon dioxide through gaseouse exchange. Also they allow carbon dioxide to diffuse from capillaries to the atmosphere.
it is freely moveable and allows for movement
an example of this is when a rubgy player has been injured and hasnt been training, this would mean they might not be fit enough when they go back and so they would need to work up their fittness. an example of this is doing endurance training to to be able to keep up during the game.
B
works different muscle groups
C
increase in size
the short term effects on the swimmer would be that the blood redistribution to the working muscles would increase.Their heart rate would increase. Their stroke volume woukd incrase and so would their cardiac output.
muscular strength increase,resistance to fatigue increases,recovery rate increase and increased flexibility
the time in which it takes to respond to a stimulus.
the ability to move a body part as quick as possible
a could be a slightly more trained athlete than b because their respiratory rate is at 15 wearas As is at 19.It shows that A did a cooldown because their HR gradually decreases and and at the very end both players return to their resting HR.
Their intercostal muscles contract.Their diaphragm flattens.This pulls the rib cage up.Also it increases the volume for the lungs