15. Special Senses

The pharyngotympanic tube __________.

Rotational movement of the head is monitored by receptors located in the __________.

Information from the balance receptors goes directly to the cerebral cortex.

Which of the following is true of static equilibrium receptors?

The receptors for sound reception and equilibrium are located in the __________.

The structure that allows pressure in the middle ear to be equalized with atmospheric pressure is the a. pinna, b. pharyngotympanic tube, c. tympanic membrane, d. oval window.

Otoliths (ear stones) are a. a cause of deafness, b. a type of hearing aid, c. important in equilibrium, d. the rock-hard petrous part of the temporal bones.

Normal balance depends on information transmitted from a number of sensory receptor types. Name at least three of these receptors.

For each of the following descriptions, indicate whether it applies to a macula or a crista ampullaris: inside a semicircular canal; contains otoliths; responds to linear acceleration and deceleration; has a cupula; responds to rotational acceleration and deceleration; inside the vestibule.

Which of the following is important in maintaining the balance of the body? a. visual cues, b. semicircular canals, c. the saccule, d. proprioceptors, e. all of these.

For a few seconds after you ride the express elevator from the 20th floor to the ground floor, you still feel as if you are descending, even though you have come to a stop. Why?

Juan tells his physician that he has been feeling dizzy, especially when he closes his eyes. He is asked to stand with his feet together and arms extended forward. As long as he keeps his eyes open, he exhibits very little movement. But when he closes his eyes, his body begins to sway a great deal, and his arms tend to drift together toward the left side of his body. Why does this occur?