Introduction Flashcards
1
Q
What are the short term effects of exercise on the cardiovascular system? (5)
A
- increased heart rate
- increased cardiac output
- release of blood cells from the spleen
- increase skin blood flow
- blood redistribution to heart and working muscles
2
Q
What are the long term effects of exercise on the cardiovascular system? (5)
A
- increased heart size
- decreased heart rate
- quicker recovery from a given heart rate
- increased capillariation in muscles
- increased total red blood cell count
3
Q
What are the effects of exercise on the respiratory system? (4)
A
- increased respiratory rate
- increased tidal volume
- increased VO2max
- thinner blood gas barrier
4
Q
How is the spleen involved in exercise?
A
Contracts during exercise to squeeze out more red blood cells into the circulation increasing packed cell volume and so increased oxygen carrying capacity
5
Q
What structures are present in the heart to suit its function? (4)
A
- fatty layer - shock absorber
- pericardium - lubrication
- valves - prevent backflow
- chordae tendinae - prevent valves turning inside out
