Exam 4 Study Guide of the Ear Flashcards

1
Q

Name the arteries which supply the auricle

A

Posterior auricular a of Eternal Carotid A

Superficial temporal a of External Carotid A

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2
Q

Name the nerve which innervates the cranial surface of the auricle

A

Great auricular n of C2 & C3

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3
Q

Lymph from the superior half of the cranial surface of the auricle drains into the:

  • superficial parotid lymph nodes
  • mastoid lymph nodes
  • superficial cervical lymph nodes
  • deep cervical lymph nodes
A

Mastoid lymph nodes

Deep cervical lymph nodes

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4
Q

Name the gland which produces earwax

A

Ceruminous and sebaceous glands

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5
Q

What is the size in diameter of the tympanic membrane?

A

1 cm

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6
Q

They tympanic membrane is the partition between the ___ and ___

A

External auditory meatus

Tympanic cavity

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7
Q

Name the shallow central peak of the tympanic membrane

A

Umbo

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8
Q

The tympanic membrane faces anterior, inferiorly, and laterally. true or false

A

True

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9
Q

The superior to lateral process of the malleus attachment on the tympanic membrane is called

A

Flaccid part

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10
Q

The external surface of the tympanic membrane is innervated by the:

  • auricular nerve of vagus
  • tympanic nerve
  • chorda tympani
  • caroticotympanic n
A

Auricular n

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11
Q

The external surface of the tympanic membrane is innervated by what 2 nerves

A

Auriculotemporal of mandibular

Small auricular branch of vagus

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12
Q

The internal surface of the tympanic membrane is innervated by the:

  • auricular n
  • tympanic n
  • chorda tympani
  • caroticotympanic
A

Tympanic n of glossopharyngeal

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13
Q

Name the features on the medial wall of the tympanic cavity

A

Prominence
Tympanic n plexus
Round window
Oval windo

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14
Q

The space superior to the tympanic membrane in the tympanic cavity is called

A

Epitympanic recess

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15
Q

All of the following are the contents of the middle ear except:

  • malleus
  • incus
  • stapes
  • modiolus
A

Modiolus

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16
Q

Which of the following indicates the floor of the tympanic cavity:

  • tegmental wall
  • jugular wall
  • carotid wall
  • mastoid wall
A

Jugular wall

17
Q

Name the arteries which supply the pharyngotympanic tube

A

Ascending pharyngeal a of External Carotid A
Middle meningeal a of Maxillary A
A of pterygoid canal of Maxillary A

18
Q

The auditory ossicles transmit the sound wave from ___ to ___ leading to the vestibule of the bony labyrinth

A

Tympanic membrane to oval window

19
Q

The ossicles are covered with regular osteogenic periosteum. True or False

A

False (lack it)

20
Q

Name the part of the malleus that attaches to the flaccid part of the tympanic membrane

A

Neck of malleus

21
Q

Which of the following describes the umbo correctly?

  • tip of the handle of the malleus
  • neck of the malleus
  • tip of the handle of the incus
  • neck of the stapes
A

Tip of the handle of the malleus

22
Q

The lenticular process articulates with

A

Head of stapes

23
Q

The tensor tympanic inserts into

A

Handle of malleus

24
Q

The head of the malleus lies in the

A

Epitympanic recess

25
The base of the stapes is considerably smaller than the tympanic membrane, as a result the vibratory force of the stapes is increased approximately ___ times over that of the tympnaic membrane
10 times
26
The auditory ossicles increase the force of the vibrations transmitted from the tympanic membrane. True or False
True (also decrease the amplitude)
27
The tensor tympani arises from ___ and inserts to ___
Pharyngotympanic tube, greater wing of sphenoid, and petrous part of temporal Handle of malleus
28
The tensor tympani is innervated by
N to the medial pterygoid of mandibular
29
Name the wall where the pyramidal eminence is for the stapedius muscle to emerge
Posterior wall of tympanic cavity