Inspiratory events occur because
a. the air pressure in the alveoli is greater than that of the atmosphere.
b. the air pressure in the alveoli is less than that of the atmosphere.
c. the volume of the thoracic cavity increases.
d. both (a) and (c) above.
e. both (b) and (c) above
E
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The ________ is used by both the digestive and respiratory systems.
A. epipharynx B. oropharynx C. nasopharynx D. larynx
Which of the following statements is accurate?
A. As a fluid becomes denser, it exerts greater forces on moving body. B. As a fluid becomes denser, it becomes more viscous. C. both A and B D. none of the above
If an axon has an absolute refractory period of 2 msec, what is the maximum frequency of action potential (AP) production in that neuron?
What will be an ideal response?
About 70% of the ventricle filling is achieved passively without the contraction of the atria.
Answer the following statement true (T) or false (F)