Quiet expiration is caused by ________.
A. contraction of the scalenes
B. contraction of the internal intercostals
C. lung recoil and increased intrapulmonary pressure
D. contraction of the external intercostals
Answer: C
You might also like to view...
The release of tissue thromboplastin initiates
A) the extrinsic clotting mechanism. B) hemolysis. C) platelet plug formation. D) the intrinsic clotting mechanism.
Each muscle cell connects to how many neuromuscular junctions?
a. five b. four c. three d. two e. one
During saltatory conduction, action potentials jump from
A) one astrocyte to another. B) an axon to a dendrite. C) one internode to another. D) one node of Ranvier to another. E) one microglia cell to another.
When the arteriovenous anastomoses are stimulated by sympathetic nerve fibers, the superficial capillary loops are ________.
A. not affected B. by passed C. collapsed D. engorged with blood