Ear

Question 1

____ transmits sounds into neurological signals

Answer 1

Cochlea

Question 2

The organ of corti is housed in the _____

Answer 2

Cochlea

Question 3

What portion of the external ear functions to direct sound to the external auditory meatus?

Answer 3

Auricle

Question 4

What portion of the ear amplify sounds?

Answer 4

Tympanic membrane

Question 5

_____ detect linear motion, speed, and head tilt

Answer 5

Semicircular duct and canal

Question 6

_____ is the duct to CSF in the ear

Answer 6

Cochlear aqueduct

Question 7

____ stops transmission of louds sounds to protect the ear

Answer 7

Tensor tympani

Question 8

The ____ tube goes from middle ear to nose

Answer 8

Pharyngotympanic tube

Question 9

The scala tympani holds ____

Answer 9

perilymph

Question 10

The cochlear duct holds ____

Answer 10

endolymph

Question 11

95% of _____ cells send frequency translation

Answer 11

Inner hair cells

Question 12

The ____ and ___ detect linear motion and head tilt

Answer 12

Saccule and Utricle

Question 13

What are the 2 maculae?

Answer 13

Saccule and Utricle

Question 14

Are low frequencies sent to the earlier or later cochlea?

Answer 14

Earlier

Question 15

Are high frequencies sent to the earlier or later cochlea?

Answer 15

Later

Question 16

_____ are ear stones

Answer 16

Otoliths

Question 17

Where mechanical energy is translated into neurologic information

Answer 17

Organ of Corti

Question 18

_____ is similar to extra cellular fluid high Na+

Answer 18

Perilymph-

Question 19

_____ is similar to intra cellular fluid high K+

Answer 19

Endolymph-

Question 20

_____ cells are in a single row, receive 95% of nerve fibers from cochlear nerve (afferent) 10-20 neurons fer hair cell; less but more important

Answer 20

Inner Hair cells

Question 21

_____ cells: Efferent and afferent nerve fibers, may act as cochlear amplifier, source of otoacoustic emissions; more but less important

Answer 21

Outer Hair cells