The most muscular chamber of the heart is the ________.
a. right atrium
b. left atrium
c. right ventricle
d. left ventricle
Answer: d. left ventricle
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Lymph is similar to blood plasma, but very low in ________.
A. protein B. carbon dioxide C. sodium and potassium D. metabolic waste E. electrolytes
What is the function of the auditory (Eustachian) tube?
A. Allows us to hear ourselves speak B. Allows fluid to drain out of the inner ear C. Equalizes air pressure in the middle ear D. Allows passage of the auditory nerve
Match the function or term with the appropriate organic molecule.A. CarbohydratesB. LipidsC. ProteinsD. Nucleic acidsStructural component of plasma membrane
Fill in the blank(s) with the appropriate word(s).
What are the three regions of the male urethra?
A. Prostatic, membranous, and penile B. Prostatic, bulbar, and penile C. Vesicular, membranous, and penile D. Vesicular, bulbar, and penile E. Prostatic, vesicular, and penile