Ear-External

Question 1

2 primary functions of the ear?

Answer 1

1. Hearing

2. Static and dynamic equilibrium (balance at rest and during body motion)

Question 2

Fancy name for ear wax?

Answer 2

Cerumen

Question 3

The external ear consists of the ear pinna, into the ear canal, and stops at what landmark?

Answer 3

Tympanic membrane

Question 4

The middle ear consists of what 3 things?

Answer 4

1. Tympanic membrane
2. Ossicles
3. Eustachian tube

Question 5

Common name for the tympanic membrane?

Answer 5

Ear drum

Question 6

From lateral to medial, name the 3 ossicles:

Answer 6

1. Malleus
2. Incus
3. Stapes

Question 7

The shortest muscle in the body? (In middle ear)

Answer 7

Stapedius

Question 8

Muscle in the middle ear connecting to the malleus, running along eustachian tube

Answer 8

Tensor tympani

Question 9

The stapes transmits vibrations to the ___ window

Answer 9

Oval

Question 10

This part of the ear helps to equalize the air pressure in the middle ear with that of the outside air, and ensures that the tympanic membrane is at proper tension. It is CLOSED, most of the time.

Answer 10

Eustachian tube

Question 11

The stapedius muscle is innervated by CN __, while the tensor tympani is innervated by CN __

Answer 11

VII (facial), CN V (trigeminal)

Question 12

The tensor tympani helps to dampen ___ sounds, while the stapedius helps to dampen ___ sounds.

Answer 12

Chewing (T=Teeth), Singing (S=Singing)

Question 13

The INNER ear is made of what 3 things?

Answer 13

1. Cochlea
2. Utricle and Saccule
3. Semicircular canals

Question 14

What cranial nerve innervates the INNER ear?

Answer 14

CN VIII (vestibulocochlear)

Question 15

The utricle and saccule provide information about the body ____ (at rest, in motion), while the semicircular canals do the opposite.

Answer 15

At rest (semicircular canals= in motion)

Question 16

List the “big four” ear complaints:

Answer 16

1. Hearing loss
2. Equilibrium or balance problems
3. Dizziness, vertigo
4. Tinnitus (auditory paresthesia)

Question 17

Fancy name for small ears (pinna is underdeveloped)

Answer 17

Microtia

Question 18

The absence or abnormal narrowing of an opening or passage in the body

Answer 18

Atresia

Question 19

A completely undeveloped pinna is referred to as ____

Answer 19

Anotia

Question 20

Which type of scarring is more permanent? Keloid or hypertrophic scarring

Answer 20

Keloid (hypertrophic scarring is usually due to improper cleaning/changing of jewelry)

Question 21

What is the street name for an outer ear infection (otitis externa)?

Answer 21

Swimmer’s ear

Question 22

Exam findings for a patient w/OE would most likely include pain while pressing or manipulating the ____

Answer 22

Tragus (or pinna)

Question 23

Name a common type of anti-inflammatory drug:

Answer 23

Corticosteroid

Question 24

Surfer’s ear (exostosis) is due to _____

Answer 24

Repeated exposure to cold water and wind

Question 25

What is a preferred mix to put into ear canal to help clean/sanitize?

Answer 25

Vinegar and Isopropyl Alcohol

Question 26

Chiropractic care for ear problems should consist or?

Answer 26

• Adjusting occiput and upper cervicals.

- Soft tissue work to suboccipitals, SCM

Question 27

As ear wax (cerumen) ages it gets _____ (lighter/darker)

Answer 27

Darker

Question 28

Ringing or buzzing in the ears. Can be constant or come-and-go.

Answer 28

Tinnitus