Human Ear Anatomy

Question 1

Auricle

Answer 1

1 Collects sound waves and directs them to auditory canal

Question 2

External Auditory Meatus (canal)

Answer 2

`#2 Funnels sound waves to tympanic membrane

Question 3

Tympanic Membrane

Answer 3

3 Transmits sound waves from external ear to middle ear ossicles

Question 4

Tensor Tympani Muscle

Answer 4

6 Mediates the attenuation reflex

Question 5

Malleus

Answer 5

8 Transmits sound waves from tympanic membrane to oval window

Question 6

Incus

Answer 6

9 Transmits sound waves from tympanic membrane to oval window

Question 7

Stapes

Answer 7

11 Transmits sound waves from tympanic membrane to oval window

Question 8

Eustachian Tube (Auditory Pharyngotympanic tube)

Answer 8

Equalizes pressure b/w middle and external ear

Question 9

Oval Window

Answer 9

13 Transmits sound waves from middle ear to cochlea of inner ear

Question 10

Cochlea

Answer 10

18 Registers sound waves and transmits them to the cochlear nerve

Question 11

Vestibule

Answer 11

12 Evaluates the position of the head in relation to gravity

Question 12

Semicircular Canals

Answer 12

Detects movements of the head in 3 dimensions

Anterior (superior) #16
Posterior #17
Lateral #15

Question 13

Bony Ampullae

Answer 13

Contain the neuromast organs of the semicircular canals

Anterior (superior) #16b
Posterior #17c
Lateral #15a

Question 14

Round Window

Answer 14

14 Dissipates sound energy from cochlea

Question 15

Vestibulocochlear Nerve

Answer 15

19 Transmits auditory and balance information from the ear to the brain