Chapter 1 & 2 Flashcards Preview

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Flashcards in Chapter 1 & 2 Deck (36)
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1
Q

a regional specialty involving medicine and surgery of the head and neck

A

otolaryngology-head and neck surgery

2
Q

subspecialties include: otology, neurotology, rhinology, allergy, laryngology, bronchoesophagology, head and neck surgery and facial plastic and reconstructive surgery

A

um yep just read those just incase

3
Q

consists of the auricle and external auditory canal

A

external ear

4
Q

composed of skin and elastic cartilage, attached to the bed by the external auditory canal and several small muscles innervated by the facial nerve

A

auricle

5
Q

cartilaginous in the lateral third and bony in the inner two-thirds

A

external auditory canal

6
Q

-
-

A

hair follicles
sebaceous glands
cerumen glands

7
Q

provide potential pathways for the spread of tumor and infection from the canal into the parotid gland, small dehiscences in the anterior portion

A

Fissures of Santorini

8
Q

the auricle and external auditory canal receive their arterial supply from __ and __

A

superficial temporal artery and posterior auricular branches of the external carotid artery

9
Q

an air-containing space with bony walls except for the tympanic membrane laterally

A

middle ear

10
Q

largest of the mastoid air cells

A

mastoid antrum

11
Q

name the bones (ossicles) that conduct sound from the tympanic membrane to the oval window, which is located in a niche just posterior and superior to the promontory

A

malleus
incus
stapes

12
Q

what is located within its own niche just inferior and anterior to the oval window

A

round window

13
Q

which one of the ossicles is the largest?

A

malleus

14
Q

which ossicles connects the tympanic membrane and the incus? its handle is embedded in the upper half of the tympanic membrane, and its head, slung from the roof of the middle ear and articulates with the body of the incus

A

malleus

15
Q

the long process of the incus articulates with ___

A

head of the staples

16
Q

the staples foot fits snugly in the __

A

oval window

17
Q

a three layered structure composed of an external squamous epithelium, a middle fibrous layer and an inner mucosal layer

A

tympanic membrane

18
Q

it has a conical configuration and is surrounded by a fibrous annulus - except in the flaccid superior area - that rests in a bony sulcus

A

tympanic membrane

19
Q

the blood supply of the middle ear and mastoid is from __

A

branches of the internal maxillary artery

20
Q

the nerve supply is through the tympanic plexis on the promontory, which contains branches of cranial nerves __

A

5, 7, 9, and 10

21
Q

connects the middle ear space with the nasopharynx

A

eustachian tube

22
Q

2/3s are cartilaginous and 1/3s is bony nearest the middle ear, it is lined with respiratory epithelium

A

eustachian tube

23
Q

function of ___ is to provide air passage from nasopharynx to middle ear to equalize pressure on both sides of the tympanic membrane

A

eustachian tube

24
Q

tensor veli palantini muscle is innervated by ___ (CN)

A

CN 5

25
Q

dysfunction of __ may result in negative pressure and accumulation of serous fluid in the middle ear space

A

eustachian tube

26
Q

composed of the end organs of hearing (cochlea) and equilibrium (labyrinth)

A

inner ear

27
Q

what are the cochlea and labyrinth contained in ___ within the temporal bone

A

otic capsule

28
Q

the snail shaped cochlea makes ____ turns

A

two and one half

29
Q

the __ is comprised of the vestibule, 3 semicircular canals and the vestibular aqueduct

A

bony labyrinth

30
Q

resembles intracellular fluid in its electrolyte composition, is contained within a continuous closed system within the cochlea and membraneous labyrinth

A

endolymph

31
Q

resembles extracellular fluid and CSF in its electrolyte composition, surrounds the endolymph containing membranes and does not communicate with the endolymph except under pathologic conditions

A

perilymph

32
Q

which part of the membraneous cochlea that associated with oval window

A

scala vestibuli

33
Q

which part of the membraneous cochlea that is associated with the round window

A

scala tympani

34
Q

contains endolymph and is bordered by the basilar membrane on which lies the delicate organ of hearing and the thin reissner’s membrane

A

cochlear duct

35
Q

thousands of ___ that project from the neuroepithelium, responsible for converting mechanical force into an electrochemical impulse interpreted as sound

A

hair cells

36
Q

__ are spatially organized along the basilar membrane in a specific frequency-responsive distribution

A

hair cells