What will happen if a normal cell is placed in a hyperosmotic solution?
A. It will swell in size.
B. It will shrink in size.
C. It will stay the same size.
D. It may swell, shrink, or stay the same size, depending upon the concentration of penetrating and nonpenetrating solutes in the solution.
D
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When at rest, the amount of air that enters and leaves the lungs in a normal respiratory cycle is the
A) total lung capacity. B) vital capacity. C) tidal volume. D) residual volume. E) inspiratory volume.
Peristaltic antral contractions
a. occur at a rate of 3/min b. are responsible for emptying food into the duodenum c. are responsible for mixing food and gastric enzymes within the antrum d. are the result of smooth muscle contractions e. have all of the above characteristics
Which is the correct sequence of events of the cardiac cycle?
A) Ventricular filling ? isovolumetric relaxation ? ventricular ejection ? isovolumetric contraction B) Ventricular filling ? isovolumetric relaxation ? isovolumetric contraction ? ventricular ejection C) Ventricular filling ? isovolumetric contraction ? isovolumetric relaxation ? ventricular ejection D) Ventricular filling ? ventricular ejection ? isovolumetric contraction ? isovolumetric relaxation E) Ventricular filling ? isovolumetric contraction ? ventricular ejection ? isovolumetric relaxation
A posterior and anterior root of each spinal segment unite to form a
A) cervical enlargement. B) lumbar enlargement. C) spinal nerve. D) denticulate ligament. E) spinal ganglion.