The baby’s first breath is stimulated primarily by:
a. the lack of oxygen in the blood
b. the accumulation of carbon dioxide in the blood
c. exposure to the “cold” temperatures outside the uterus
d. the rigors of the birth process
b. the accumulation of carbon dioxide in the blood
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A cell can increase how fast a substance diffuses across its plasma membrane by inserting channels, which modify the
A) distance across the membrane. B) concentration gradient of the substance. C) size and mobility of the substance. D) membrane's permeability to the substance. E) charge of the substance.
Which of the following cells is NOT an agranular leukocyte?
a) Monocytes b) Macrophage c) Lymphocyte d) Basophil e) All of these choices
What does compliance measure in terms of lung function?
A. It measures how much the lung can expand. B. It measures how much the lung can hold. C. It measures how well the lung can expand and return to shape. D. None of these are correct.
Inflammation of the gums is called ________.
A. dental caries B. halitosis C. gingivitis D. pyorrhea