Across
- 2. short tube comprised of several cartilages connected by ligaments and muscles and contains the vocal folds that are needed for sound production
- 6. large muscle that separates the thoracic and abdominal cavities
- 7. the mammalian nervous system controls the heart rate via these nerves
- 9. this type of volume is higher in individuals that are very fit
- 11. during exercise, this activity diminishes and sympathetic activity increases
- 13. this is located posterior to the nasal and oral cavities
- 14. contraction of the muscles raises and rotates the ribs to increase the volume of this cavity
- 17. this volume is breathed in each breath
- 19. this flow is known as streamlined flow
- 20. distribution of blood flow is highest in this organ during exercise (two words, no spaces)
Down
- 1. this is the maximal amount of air that can be exhaled from the lungs after a normal expiration (three words, no spaces)
- 3. this flow is known as disorganized flow
- 4. smallest airways of the respiratory tract
- 5. this type of muscle relaxes to permit more blood to enter the particular capillary beds
- 8. an increase in heart rate corresponds to a shortening of this (two words, no spaces)
- 10. windpipe, links the upper airways to the lungs
- 12. these muscles relax during inspiration
- 15. this is the volume of gas left in the respiratory system after exhaling maximally
- 16. in this breathing, contraction of the diaphragm pushes the abdominal contents downward
- 18. when the pressure within the lungs is equal to pressure of the atmosphere, the respiratory is in this state