Identify the correct sequence of blood flow through the chambers of the heart.
a. Lungs, right ventricle, left ventricle, right atrium, left atrium
b. Right ventricle, left ventricle, left atrium, lungs, right atrium
c. Left atrium, left ventricle, right ventricle, right atrium, and lungs
d. Right atrium, right ventricle, lungs, left atrium, left ventricle
e. Left ventricle, left atrium, lungs, right ventricle, right atrium
Answer: d. Right atrium, right ventricle, lungs, left atrium, left ventricle
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A) anulospiral endings B) extrafusal fibers C) intrafusal fibers D) gamma motor neurons E) alpha motor neurons
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A) a tenfold difference in hydrogen ion concentration separates each whole number. B) the lower the whole number on the scale, the greater the H+ concentration. C) all of the above. D) pH values above 7 are basic (alkaline).
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A) are single-membrane structures involved in the breakdown of ATP B) synthesize proteins for use outside the cell C) contain digestive enzymes called acid hydrolyses D) contain some of the DNA and RNA code necessary for their own function