Severing the sensory fibers from the lungs would result in all of the following except
A) less inhibition of the inspiratory center during forced breathing.
B) a drop in tidal volume.
C) potential damage to the lungs due to overinflation.
D) a disappearance of the Hering-Breuer reflexes.
E) less stimulation of the expiratory center during forced breathing.
B
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A. Mitosis B. Meiosis C. Both answers are correct. D. None of these are correct.
Which of the following is likely to occur as a result of bathing the heart with K+, Na+, or Ca2+?
A) The heart stops beating. B) Contractions become weaker. C) Contractions become more forceful. D) Arrhythmias occur.
Which nervous system promotes increased peripheral resistance and increased blood pressure through the vasoconstriction of systemic arterioles?
A) sensory nervous system B) parasympathetic nervous system C) sympathetic nervous system D) somatic nervous system
There is a total of ________ deciduous teeth and ________ permanent teeth.
A. 22; 34 B. 20; 32 C. 24; 36 D. 20; 36