Unit 21 end of unit Flashcards
a. what happens to the metabolism during exercise? what is generated as a byproduct of glucose metabolism?
b. what does this byproduct do to the pH of the blood? why?
c. what sort of ventilatory response does this change in pH cause? why?
d. 1) what happened to the respiratory rate during & after exercise?
2) what happened to the pH of the water after exercise?
3) what happened to the respiratory rate&the pH of the water after resting?
a. Metabolism increases during exercise. H2O+CO2 is generated.
b. decrease the pH of your blood, bc CO2+H2O–>H2CO3–>H+ + HCO3-
c. hyperventilation to get rid of CO2
d. 1) during: R.R. increases after: R.R. still high, still trying to let out CO2
2) pH of water dropped bc we are blowing off CO2
3) should go back to homeostasis (normal)
basic physiologic process carried out by the respiratory system:
internal respiration
pulmonary ventilation
gas transport
external respiration
according to boyle’s law, as the volume of a container increases, the pressure ___________ conversely, as the volume of a container decreases the pressure ___________.
- decreases
2. increases
air moves into the lungs when….
intrapulmonary pressure is less than atmospheric pressure.
passive expiration is achieved primarily by the….
elastic recoil of the lungs
how do restrictive and obstructive diseases differ?
- restrictive diseases are characterized by loss of elasticity of the lung tissue.
- while obstructive diseases are characterized by increased airway resistance cause by narrowing of the bronchioles, increased mucus secretion, and/or an obstructing body such as a tumor.
carbon dioxide is transported thru the blood primarily as…
bicarbonate
hyperventilation _________ the amount of carbon dioxide exhaled and therefore ___________ the blood pH. Hypoventilation ___________ the amount of CO2 exhaled and therefore __________ the blood pH.
1&2. increases
3&4. decreases
the enzyme that converts carbon dioxide and water into carbonic acid is called….
carbonic anhydrase
