The function of the upper esophageal sphincter is to
a. direct food from the mouth to the esophagus
b. protect the airway during swallowing
c. prevent backflow from the esophagus
d. prevent backflow from the stomach
c
You might also like to view...
The thickness of a liquid is known as its:
A. osmolality B. viscosity C. nutrient density D. osmolarity E. coagulation
The daily intake value of a nutrient that meets the physiological requirements of half of the healthy people is:
1.EAR 2.RDA 3.DRI 4.AI
The end products of digestion of macronutrients include fatty acids, amino acids, and:
a. monosaccharides. b. polysaccharides. c. enzymes. d. cholesterol.
Adaptive thermogenesis and nonexercise activity thermogenesis are
A. components of total energy expenditure. B. different names for the same energy expenditure. C. components of basal metabolism. D. heat-generating activities that improve or maintain physical fitness.