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Head & Neck 2-My Flashcards > Salivary Glands, Ear, Petrosal Region > Flashcards

Salivary Glands, Ear, Petrosal Region Flashcards

1
Q

Parotid gland and duct

A

25-30% of saliva production

Serous saliva

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2
Q

Sublingual gland and duct

A

3-5% of saliva production

Serous and mucous saliva, primarily mucous

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3
Q

Submandibular gland and duct

A

60-70% of saliva production

Serous and mucous saliva, primarily serous

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4
Q

Which gland is hook shaped, wraps around posterior border of mylohyoid m.?

A

Submandibular Salivary Gland

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5
Q

Submandibular Salivary Gland aka

A

Wharton’s duct

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6
Q

Submandibular Salivary Gland innervated by

A

CN VII

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7
Q

Lingual nerve next to ____ and they loop around and criss-cross at one point.

A

submandibular duct

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8
Q

Sublingual Salivary Gland innervated? creates what fold?

A

CN VII

Sublingual fold

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9
Q

Parotitis/Mump 2 types?

A
  1. Bacterial parotitis-high mortality rate, seen in elderly taking anticholinergic meds that inhibit salivary flow
  2. Viral parotitis (mumps)-spread through saliva, coughing, sneezing. mumps vaccine since 1970s.
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10
Q

Parotid tumors

A

80% benign
lose facial expression
can spread to mandible, pharynx, base of skull, middle ear, cervical lymph nodes

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11
Q

Frey’s Syndrome

A

Sweating and redness in the distribution of the auriculotemporal nerve during eating

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12
Q

Parotid fistula

A 
Communication between the parotid gland and the skin or oral cavity
Often occur from trauma:
Injury during surgery
Secondary to tumors
Congenital
Infection
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13
Q

Superficial Auricle

A

Auriculotemporal (from V3)

Cervical plexus

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14
Q

cervical plexus

A

Lesser occipital nerve (C2)

Great auricular nerve (C2, C3)

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15
Q

Deep Auricle

A 
Auricular branch (from X)
Auricular branch (from VII)
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16
Q

Arterial supply of external ear

A

Superficial temporal a. (from ECA)
Posterior auricular a. (from ECA)
Deep auricular a. (from maxillary a.)
Anterior tympanic a. (from maxillary a.)

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17
Q

Ceruminous glands

A

Are in external acoustic meatus and produce Cerumen (earwax)

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18
Q

Tympanic membrane innervated by?

A

Lateral=V3

Medial side innervated by IX

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19
Q

Tympanic membrane is a 3 layer membrane what is in each?

A

External layer is skin, stratified squamous epithelium

Middle layer is fibrous, attaching to the malleus

Inner layer is mucous membrane, ciliated columnar epithelium

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20
Q

Middle ear located at the?

A

petrous portion of the temporal bone.

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21
Q

Roof of middle ear

A

Tegmen tympani, separating middle ear from temporal lobe of the brain

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22
Q

Floor of middle ear

A

Thin bone, immediately superior to the internal jugular v.

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23
Q

What muscle attaches to the auditory tube?

A

salpingopharyngeus muscle

24
Q

Anterior wall of middle ear

A

auditory tube
lesser petrosal nerve
postganglionic sympathetic fibers

25
Q

posterior wall of middle ear

A

Facial canal, terminates at stylomastoid foramen

Mastoid antrum, leads to mastoid air cells

Stapedius

26
Q

medial wall of middle ear

A

oval window
round window
tensor palatini
promontory

27
Q

lateral wall of middle ear

A

chorda tympani

tympanic membrane

28
Q

Content of middle ear

A

VII
Chorda tympani passes through, does not innervate
Nerve to stapedius

IX
Tympanic nerve
Tympanic plexus
With sympatheic fibers
Lesser petrosal nerve
29
Q

Sensory innervation of middle ear

A

tympanic plexus

30
Q

Mastoiditis

A

Usu. second to otitis media
may lead to partial or total hearing loss
Can travel through bone to the middle cranial fossa, causing meningitis
Mastoidectomy to surgically remove pus

31
Q

Inner ear 2 parts

A

Osseous labyrinth-filled with perilymph

Membranous labyrinth-filled with endolymph

32
Q

Inner ear includes

A

vestibule
3 semicircular canals
cochlea
vestibular and cochlear nerves

33
Q

Cochlea 3 parts

A

Scala vestibuli
-Perilymph

Cochlear duct
-Endolymph

Scala tympani
-Perilymph

34
Q

Pathway of sound

A

Middle ear vibrates back and forth–>malleus–>incus–> stapes attached to oval window–>fluid (peri and endo) will bounce in cochlea–>inside cochlear duct is organ of corti–> morse code with tectorial membrane

35
Q

The parotid salivary gland is associated with the ___ nucleus.

A

inferior salivatory

36
Q

The sublingual salivary gland is ass. with the __ of nucleus.

A

superior salivatory

37
Q

Highest to lowest salivary production

A

submandibular>parotid>sublingual

38
Q

Bartholin’s duct aka

A

sublingual duct

39
Q

What provides sensory innervation to auricle

A 
lesser occipital nerve 
great auricular nerve
auriculotemporal nerve
CN VII
CNX
40
Q

Part of the anterior border of the parotid bed?

A

Masseter

41
Q

Deep surface of the tympanic membrane is innervated by

A

IX

42
Q

Located in middle ear

A 
chorda tympani
lesser petrosal nerve 
nerve to the stapedius
tympanic nerve
tympanic plexus
43
Q

Opening that acts as a pressure release valce for the inner ear

A

Round window

44
Q

Sympathetic innervation reaches the inner ear by traveling with the

A

Internal carotid artery

45
Q

The nerve to the medial pterygoid, a branch of V3, innervates the medial pterygoid muscle and the

A

Tensor veli palatini

Tympani

46
Q

Which salivary gland secretes saliva into the oral cavity near the maxillary second molar?

A

Parotid gland

47
Q

The deep portion of the submandibular salivary gland lies between the __muscle and the mandible.

A

Hyoglossus

48
Q

The tragus is __to the helix

A

anterior

49
Q

In the middle ear, the chorda tympani is __ to the oval window.

A

lateral

50
Q

The ___ never branches from the facial nerve while in the parotid salivary gland.

A

Zygomatic nerve

51
Q

The malleous is ___ to the stapes

A

lateral

52
Q

Parotid Bed anterior

A

Masseter m.

Ramus of mandible

53
Q

Posterior of parotid bed

A

Mastoid process of the temporal bone

Sternocleidomastoid m.

54
Q

Medial of parotid bed

A

Styloid process

Transverse process of C1

55
Q

Lateral of parotid bed

A

Investing layer of deep cervical fascia

Head & Neck 2-My Flashcards (12 decks)

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