When the pH of the tissue decreases, the precapillary sphincters __________ causing blood flow to the tissue to _________.
A. contract; decrease
B. contract; increase
C. relax; decrease
D. relax; increase
E. close; remain the same
Answer: D. relax; increase
You might also like to view...
The internal intercostal muscles are inspiratory muscles because they lift the ribs upward and outward to enlarge the thoracic cavity
Indicate whether the statement is true or false
Which of the following would inhibit normal movements of the tongue?
A. swollen lips B. lingual frenulum extending to tip of tongue C. decrease in number of taste buds D. loss of all teeth E. swollen tonsils
Which of the following does not arise from the embryonic mesoderm?
A. The nervous system B. The blood vessels C. The mesothelium D. The skeletal system E. The dermis
Most immune responses originate in
A) secondary lymphoid structures. B) macrophages. C) the skin. D) primary lymphoid structures. E) the liver.