the ear

Question 1

The ear is made up of two main parts: the external and internal ear.

Answer 1

False

Question 2

The external ear includes the auricle and the external acoustic meatus.

Answer 2

True

Question 3

The only part of the auricle not supported by cartilage is the lobule.

Answer 3

True

Question 4

The tragus is located behind the opening of the external acoustic meatus.

Answer 4

False

Question 5

The tympanic membrane separates the middle ear from the internal ear.

Answer 5

False

Question 6

The tympanic membrane is made of connective tissue lined externally with skin and internally with mucous membrane.

Answer 6

True

Question 7

The umbo is the central depression of the tympanic membrane where the malleus attaches.

Answer 7

True

Question 8

The pars flaccida is the thick, taut part of the tympanic membrane.

Answer 8

False

Question 9

The middle ear is an air-filled cavity located in the temporal bone.

Answer 9

True

Question 10

The middle ear communicates with the nasopharynx via the pharyngotympanic tube.

Answer 10

True

Question 11

The pharyngotympanic tube helps equalize pressure on both sides of the tympanic membrane.

Answer 11

True

Question 12

The three auditory ossicles are the malleus, incus, and stapes.

Answer 12

True

Question 13

The stapes is attached to the tympanic membrane.

Answer 13

False

Question 14

The ossicles transmit sound vibrations from the tympanic membrane to the internal ear.

Answer 14

True

Question 15

The tensor tympani muscle increases the vibrations of the tympanic membrane in response to loud noises.

Answer 15

False

Question 16

The stapedius muscle helps protect the ear by dampening movement of the stapes.

Answer 16

True

Question 17

The internal ear is composed of a bony labyrinth only.

Answer 17

False

Question 18

The bony labyrinth contains perilymph, while the membranous labyrinth contains endolymph.

Answer 18

True

Question 19

The cochlear duct is part of the bony labyrinth.

Answer 19

False

Question 20

The cochlear duct is responsible for detecting sound.

Answer 20

True

Question 21

The semicircular canals detect changes in linear acceleration.

Answer 21

False

Question 22

The utricle and saccule are part of the membranous labyrinth and help maintain balance.

Answer 22

True

Question 23

The macula in the utricle and saccule senses rotational movement.

Answer 23

False

Question 24

Otoliths (statoconia) provide weight and inertia to enhance gravity and motion detection.

Answer 24

True

Question 25

The crista ampullaris is located in the cochlear duct.

Answer 25

False

Question 26

The crista in the semicircular canals detects angular acceleration.

Answer 26

True

Question 27

The Organ of Corti lies on the basilar membrane inside the cochlear duct.

Answer 27

True

Question 28

The scala vestibuli and scala tympani are continuous with each other within the cochlea.

Answer 28

True

Question 29

The cochlear canaliculus connects the cochlea to the nasopharynx.

Answer 29

False

Question 30

The vestibulocochlear nerve divides into cochlear and vestibular parts.

Answer 30

True