The walls of the alveoli are composed of two types of cells, type I and type II alveolar cells. The function of type II alveolar cells is to ________
A) replace mucus in the alveoli
B) protect the lungs from bacterial invasion
C) trap dust and other debris
D) secrete surfactant
D
You might also like to view...
The liquid that is inside the cell is called the ________
A) cytoskeleton B) cytoplasm C) cytosol D) nucleolus
When the epiphyseal plate is replaced by bone,
A) puberty begins. B) interstitial bone growth begins. C) appositional bone growth begins. D) long bones have reached their adult length. E) the bone becomes more brittle.
Light falling on the retina is absorbed by rhodopsin and photopsin in the pigment epithelium.
Answer the following statement true (T) or false (F)
Cardiac output equals the
A. cardiac reserve minus the stroke volume. B. heart rate multiplied by stroke volume. C. end diastolic volume minus end systolic volume. D. stroke volume divided by heart rate. E. blood pressure multiplied by heart rate.