The trachea allows for the passage of large masses of food through the esophagus due to:
The size of the trachea
the elasticity of the ringed tracheal cartilages
distortion of the esophageal wall
the C-shaped tracheal cartilages
none of the choices are correct
the C-shaped tracheal cartilages
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Define Dalton's law
A) Dalton's law states that in a mixture of gases, the individual gases exert a pressure proportional to their abundance in the mixture. B) Dalton's law states that at a given temperature, the amount of a particular gas that dissolves in a liquid is directly proportional to the partial pressure of that gas, which underlies the diffusion of gases between capillaries and alveoli, and between capillaries and interstitial fluid. C) Dalton's law states that at a constant temperature, the pressure of a gas is inversely proportional to its volume. D) Dalton's law states that at a constant temperature, the pressure of a gas is directly proportional to its volume. E) Dalton's law states that at a given temperature, the amount of a particular gas that dissolves in a liquid is inversely proportional to the partial pressure of that gas, which underlies the diffusion of gases between capillaries and alveoli, and between capillaries and interstitial fluid.
Loop diuretics reduce body water content by acting on the ________
A) feedback loop between the kidney and posterior pituitary gland B) countercurrent exchanger system C) countercurrent multiplier system D) thirst mechanism and water intake E) aquaporins of the collecting duct
Which of the following epithelial tissue types is NOT correctly matched to its function?
a. simple columnar epithelium with microvilli; absorption b. simple squamous epithelium; filtration c. simple cuboidal epithelium; secretion d. stratified squamous epithelium; absorption
The reaction H2CO3 ? H+ + HCO3 is what type of reaction?
A) decomposition B) exchange C) hydrolysis D) synthesis E) reversible