During inspiration, the diaphragm ____ and ____ the volume of the thoracic cavity, causing air to flow ____
a. relaxes; increases; inward
b. contracts; increases; inward
c. relaxes; decreases; outward
d. relaxes; decreases; inward
e. contracts; decreases; inward
b
You might also like to view...
Due to a chemical equilibrium, a syntrophic relationship can be disrupted if the product from the first partner's metabolism is removed too quickly
Indicate whether the statement is true or false.
These are the only vertebrates in which blood flows directly from respiratory organs to body tissues without first returning to the heart.
A. Amphibians B. Birds C. Fishes D. Mammals E. Reptiles
what leads to rickets in children
What will be an ideal response?
Patients with diabetes mellitus have frequent urination and increased thirst because
A. an increase in sodium ions causes more nerve stimulation and triggers urination. B. more salt is reabsorbed at the proximal convoluted tubule. C. less water passes from the glomerulus to the glomerular capsule. D. increased glucose in the urine increases its osmolarity and less water is reabsorbed by blood. E. more water is driven from the glomerulus to the glomerular capsule than normal.