What is the function of the auditory tube?
A. To transmit sound waves to the inner ear
B. To equalize air pressure between the atmosphere and the middle ear
C. To prevent the invasion of microorganisms into the inner ear
D. To provide an airway between the middle and inner ear
E. To provide a passageway for fluid from the middle to the inner ear
Answer: B
You might also like to view...
Two thieves steal jewelry, and then drop it as they are escaping. The police recover the jewelry, and an officer explains on the evening news that fingerprints were obtained from the back of a watch. The thieves, whose prints are not on file, believe that they can escape prosecution by using acid to remove the epidermis on their fingerpads, so as not to be a match for the fingerprints on the watch. They are wrong because
A. the prints arise from friction ridges of the dermis, which are not destroyed. B. the prints arise from the subcutaneous layer, which is not destroyed. C. the epidermis will regrow the friction ridges in a day. D. the friction ridges will not grow back in the same pattern.
Which of the following statements is true?
A) Fructose moves across the apical membrane by active transport. B) Glucose and galactose use different transporters in absorption. C) A basolateral GLUT5 transporter moves glucose out of the intestinal epithelial cell. D) Glucose and galactose absorption uses an apical Na+-glucose SGLT symporter. E) None of the statements are true.
Growth of bones is controlled by a symphony of hormones. Which hormone is of greatest importance for bone growth during infancy and childhood?
prolactin thyroid hormone somatomedins growth hormone
The upper chambers of the heart are _____ and _____.
A) atria; pump blood within the heart B) atria; pump blood out of the heart C) ventricles; pump blood within the heart D) venticles; pump blood out of the heart.