Inspiration is due to which two of the following
a. the expansion of the lungs
b. the compression of the lungs
c. alveolar pressure being greater than atmospheric pressure
d. alveolar pressure being less than atmospheric pressure
Answer:
a. the expansion of the lungs
d. alveolar pressure being less than atmospheric pressure
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Which of the following characteristics associated with twitch summation allows for maximal contraction force?
a. high levels of NE in the synapse b. lower frequency of action potentials in the sarcolemma c. increased movement of calcium into the sarcoplasmic reticulum d. rapid rise of calcium in the cytosol e. longer latent periods of contractions
The oxygen content of arteries in the pulmonary circulation is high.
Answer the following statement true (T) or false (F)
Adjustment to close-range vision involves all of the following except ________.
A. ciliary muscle activity B. constriction of the pupil C. change in the curvature of the lens D. light adaptation E. activity of the extrinsic eye muscles
The __________ is not found in the elbow.
A. humeroulnar joint B. humeroradial joint C. proximal radioulnar joint D. distal radioulnar joint E. anular ligament