Across
- 2. the maximum volume of oxygen that the body is using for aerobic ATP (energy) production achieved during incremental exercise to exhaustion
- 4. the force of your blood on your artery walls
- 5. the force of your blood on your artery walls in between beats, during heart relaxation
- 6. where more blood flow is redirected to the working muscles and less of it goes to other body organs such as the digestive system
- 7. the increase in HR in the minutes before exercise commences, usually due to anxiety and adrenalin
- 9. protein found in skeletal and cardiac muscles that reversibly binds to oxygen, serving as an oxygen storage molecule within muscle fibres
- 10. Tiny air sacs at the end of the bronchioles(tiny branches of air tubes in the lungs)where the lungs and the blood exchange oxygen and carbon dioxide
- 11. blood vessels carrying deoxygenated blood back to the heart from the body
- 12. the body's immediate, short term changes that occur in response to exercise. usually to increase oxygen uptake
- 14. the state in which oxygen supply equals oxygen demand so that virtually all the required ATP to maintain the current exercise intensity is being supplied aerobically.
- 16. microscopic blood vessels where gas exchange occurs at the alveoli and body cells (including muscle fibres)
- 18. the widening of blood vessels supplying the other organs resulting in increased blood flow where oxygen demand is higher
- 20. the difference in oxygen content between the arteries and veins
- 22. the total volume of oxygen that the body is using for aerobic ATP (energy) production
- 24. blood vessels carrying oxygenated blood away from the heart to the working muscles
- 27. the volume of blood ejected from the left ventricle each beat measured in ml/beat
- 28. exercise intensity that can be maintained up to but not exceeding 85 percent of your maximum heart rate
- 29. the number of time the heart contracts in one minute measured in bpm
- 31. cell organelles, often called the "powerhouses of the cell," that generate energy in the form of ATP through aerobic respiration
- 32. the state in which there is a discrepancy (shortfall) between oxygen supply and the oxygen needed to meet the energy requirements of the activity. The anaerobic pathways must supplement the energy demands of the activity.
- 33. the total number of breaths taken in one minute (breaths/min)
- 34. the amount of oxygen consumed during the recovery period after the cessation of an exercise bout that is over and above the amount usually required during rest
- 35. the total volume of air breathed in and out of the lungs in one minute (L/min)
Down
- 1. the narrowing of blood vessels supplying the other organs resulting in reduced blood flow where oxygen demand is lower
- 3. the force of your blood on your artery walls during heart contraction
- 8. proteins found within muscle cells that play a crucial role in muscle function such as energy production
- 13. the movement of gases (including oxygen and carbon dioxide) between the alveoli (lungs) and the capillaries (blood)
- 15. the volume of blood ejected from the left ventricle per minute measured in L/min
- 17. the maximum number of beats your heart can make per minute normally achieved during incremental exercise such as a VO2Max test
- 19. the body system made up of the heart, blood and blood vessels with the primary function of transporting oxygen and nutrients
- 21. the total volume of air breathed in and out of the lungs in one breath(L/breath)
- 23. term used to describe a straight-line relationship between two variables such as heart rate and exercise intensity
- 25. o reach a state or level of little or no increase or decrease; to remain at a stable level or to level off
- 26. the number of time the heart contracts in one minute while at rest
- 30. one motor neuron and all of the muscle fibers it innervates