Contraction of the circular smooth muscle in the gastrointestinal tract wall decreases the diameter of the lumen, while contraction of the longitudinal smooth muscle shortens the tract.
Answer the following statement true (T) or false (F)
True
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The right lung has ________ lobes; the left lung has ________ lobes.
A. anterior, posterior, and lateral; superior and inferior B. superior, middle, and inferior; anterior and posterior C. superior and inferior; superior, middle and inferior D. superior, middle, and inferior; superior and inferior
Even the most forceful exhalation leaves air in the lungs; this is called the ______ and is needed to _______.
A. tidal volume; acquire adequate O2 B. vital capacity; remove adequate CO2 C. functional residual capacity; keep alveoli patent D. residual volume; keep alveoli patent
Total saturation of protein transporters for a given solute in the renal tubules would result in ________
A) a renal clearance of zero B) reabsorption of all the solute C) appearance of that solute in the urine D) a net filtration pressure of 1.0 E) absence of that solute from the urine
Which number indicates the lunula?
A. 1 B. 2 C. 3 D. 4 E. 5