Intro to Respiration Flashcards
CO2 is transported in the bloodstream as
bicarbonate
internal respiration
intracellular metabolic processes
- occurs in mitochondria
respiratory quotient
CO2 produced/O2 consumed
*varies based on food eaten
RQ for carbs, fat, and protein. Average RQ?
- carbs: 1
- fat: 0.7
- protein: 0.8
- average: 0.8
branches in conducting zone? How structures make up this zone?
- 16
- trachea
- bronchi
- bronchioles
what is the conducting zone
anatomic dead space
branching in respiratory zones? Structures that make up this zone
- 17-23: exchange zone
- respiratory bronchioles (17-19)
- alveolar ducts (20-23)
mucus in conducting zone is secreted from
Goblet cells in bornchial walls
function of conducting zone
- warm, humidify, and filter air
How is smooth muscle in conducting zone relaxed and dilated
- SNS adrenergic neurons
- activate B2 receptors via epinehprine
How does smooth muscle in conducting zone contract
- PNS cholinergic neurons
- activation of muscarininc receptors on smooth muscle
ficks law
amount of gas moving across a tissue is proportional to area byt inversely proportional to its thickness
equation for ficks law
Vx = (D x A x change in P) / change in X
- Vx= volume of gas transferred/unit time
- D= diffusion coefficient
- A= surface area
- P: partial pressure difference of gas
- X: thickness
pores of kohn
- in walls of adjacent alveoli and that allow airflow between adjacent alveoli
- = collateral ventilation
differentiate between Type I and II cells of alveoli
- type I: wall forming
- type II: surfactant producing
