The respiratory membrane is a combination of ________
A) respiratory bronchioles and alveolar ducts
B) alveolar and capillary walls and their fused basement membranes
C) respiratory bronchioles and alveolar sacs
D) atria and alveolar sacs
B
You might also like to view...
The production of platelets is called _______________
Fill in the blank with correct word.
The afferent and efferent axons together form the
A) somatic motor division of the nervous system. B) central nervous system. C) autonomic division system. D) visceral nervous system. E) peripheral nervous system.
If you observed a higher-than-normal number of plasma cells in a sample of lymph, would you expect antibody levels in the blood to be higher or lower than normal?
A) Plasma cells produce antibodies so you would expect antibody levels would be higher than normal. B) Plasma cells do not produce antibodies so you would expect antibody levels would be higher than normal. C) Plasma cells produce antibodies so you would expect antibody levels would be lower than normal. D) Plasma cells do not produce antibodies so you would expect antibody levels would be lower than normal.
What are the tiny projections in the duodenal lining?
A. Brush border B. Villi C. Lacteals D. None of these are correct.