- surfactant that lowers alveolar surface tension is not present until _____ in fetal development and may not be present in ______ babies
- lungs are not fully inflated until ____ weeks after birth
- lungs are filled with _____ in the fetus
- carbon monoxide competes with _____ and binds with ____
- pulmonary capillary blood gives up _______ ______ in external respiration
- oxygen moves by ______ _______ towards the area of ________ concentration in external respiration
- carbon monoxide is there ______! Until the cell ______
- those infected with COPD will ultimately develop ______
- what is the posterior soft palate made of?
- blood leaving the lungs is _____ rich and ________ poor
- what is the only externally visible part of the respiratory system?
- pulmonary capillary blood _____ oxygen in external respiration
- respiratory capacities are measured with a _______
- carbon dioxide diffuses out of _____ to ______ during internal respiration
- alveoli have close association with ______
- Blood returning from tissues has _____ concentrations of carbon dioxide than air in the alveoli during external respiration
- normal breathing moves about ______ ml of air with each breath; what is this called?
- the alveoli always has _____ oxygen than the blood during external respiration
- what is the anterior hard palate made of?
- what separates the nasal cavity from the oral cavity?