Residual air is important because it:
a. signals the need to breathe again
b. provides a rest period for the respiratory muscles
c. provides for continuous exchange of gases
d. prevents collapse of the lungs
Ans: c. provides for continuous exchange of gases
You might also like to view...
When relaxing, the diaphragm moves ____________________(up or down?), resulting in a(n) (increase or decrease?) in thoracic pressure
Fill in the blank(s) with correct word
The formation of ____ is the final step in the transformation of light energy into the chemical energy of a biologically usable form
a. DNA b. glucose c. RNA d. ATP
Insulin is taken up, via endocytosis, by the endothelial cells that line blood capillaries. Then, it's transported across the cell to the other side, where it is released. This transport is called ________.
A. facilitated transport B. pinocytosis C. passive transport D. receptor-mediated phagocytosis E. transcytosis
The most movable joints are ________ joints
A) synchondrosis B) symphysis C) syndesmosis D) gomphosis E) synovial