In the normal hearing pathway, sound waves have to pass from air to liquid as sound is transmitted from the external ear to the inner ear. This occurs as a result of
a. the increase in pressure on the oval window relative to the pressure on the tympanic membrane.
b. the increase in force applied to the oval window which is accomplished by the lever action of the inner ear ossicles.
c. the difference in surface areas of the tympanic membrane and the membrane of the oval window .
d. two of these.
e. all of these.
E
You might also like to view...
When an antigen and a complement protein combine
a. the complement inactivates the antigen b. it helps kill cells on whose surface complement-binding takes place c. the antibody must be attached to the antigen d. both B and C above
When highly acidic chyme arrives in the duodenum, which substance will neutralize the acidity?
A) trypsin B) bicarbonate C) bile D) water
Indicate the statements that correctly describe partial thickness burns
What will be an ideal response?
Damage to a ________ would result in lack of sympathetic control of the heart.
A. spinal nerve B. sympathetic nerve C. cranial nerve D. splanchnic nerve