Which structure delivers sound waves to the tympanic membrane?
A) None of the listed responses is correct.
B) pinna
C) auditory tube
D) external acoustic meatus
D
Explanation:
A) One of the listed responses is correct.
B) The pinna funnels sound waves to the external acoustic meatus.
C) The auditory tube equalizes pressure between the external air and the cavity of the middle ear.
You might also like to view...
What are "mismating" shots?
What will be an ideal response?
As the total cross-sectional area of the vascular tree ____, the velocity of blood flow ____
a. increases; decreases b. increases; increases c. decreases; decreases d. increases; remains constant e. decreases; remains constant
Which organ system directs immediate responses to stimuli?
A) endocrine B) nervous C) cardiovascular D) lymphatic
What is chest pain due to an inadequate blood supply to heart muscle tissue called?
A. Atheroma B. Myocardial infarction C. Angina pectoris D. Cardiac tamponade E. Ventricular fibrillation