BackMrs. Flores is a 45-year-old female who suffered a fracture of the ethmoid bone as the result of a car accident. Several days later, she complained that she couldn't taste her food very well. How is her injury related to the loss of taste sensation?
Following a stroke, a patient lost vision in the left visual field. Name several structures in the brain that could have been damaged by the stroke to have caused this vision loss. Be specific as to right or left side.
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
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
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
The semicircular ducts are connected to the utricle, and the cochlear duct is continuous with the saccule.
Sound waves are converted into mechanical movements by the
(a) Auditory ossicles
(b) Cochlea
(c) Oval window
(d) Round window
(e) Tympanic membrane
Which of the following correctly matches the sense to the type of stimulus it measures in the environment?
What are the three auditory ossicles in the middle ear, and what are their functions?
Which of the following cranial nerves is not involved in the gustatory sense?
a. Vagus nerve (X)
b. Hypoglossal nerve (XII)
c. Facial nerve (VII)
d. Glossopharyngeal nerve (IX)
Movement of which structure triggers the bending of hairs of the hair cells in the spiral organ of Corti?
In the ampulla of a semicircular duct, the hair cells are located in the_____and their stereocilia and kinocilium are embedded in the______.
Taste buds are found on the
a. Anterior part of the tongue
b. Posterior part of the tongue
c. Palate
d. All of these
Damage to the ampullary cupula of the lateral semicircular duct would interfere with the perception of
(a) The direction of gravitational pull
(b) Linear acceleration
(c) Horizontal rotation of the head
(d) Vertical rotation of the head
(e) Angular rotation of the head
Explain how sounds of different frequencies are detected in the cochlea.
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.