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DDS1-gross anatomy > pharynx > Flashcards

pharynx Flashcards

1
Q

between pharynx and vertebral column posteriorly

A

retropharyngeal space

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2
Q

between nasopharynx and oropharynx

A

pharyngeal isthmus

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3
Q

3 subdivisions of pharynx

A
  1. nasopharynx
  2. oropharynx
  3. laryngopharynx
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4
Q

nasopharynx is superior to

A

soft palate (and pharyngeal isthmus)

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5
Q

opening in front of nasopharynx

A

choanae

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6
Q

opening in front of oropharynx

A

oropharyngeal isthmus

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7
Q

opening in front of laryngopharynx

A

laryngeal inlet

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8
Q

what two bones are on the roof and posterior wall of nasopharynx

A

sphenoid and occipital

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9
Q

whats between the nasopharynx and oropharynx

A

pharyngeal isthmus

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10
Q

elevation posterior to the PT tube

A

torus tubarius

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11
Q

posterior to torus tubarius

A

pharyngeal recess

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12
Q

vertical fold of membrane covering a muscle that runs below the torus tubarius

A

salpingopharyngeal fold

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13
Q

oropharynx is between

A

soft palate and base of tongue

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14
Q

boundaries between oral cavity and oropharynx

A

palatoglossal arches and oropharyngeal isthmus

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15
Q

laryngopharynx is between

A

epiglottis to top of esophagus

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16
Q

collection of lymphoid tissues in the mucosa of pharynx surrounding openings of nasal and oral cavities

A

tonsils

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17
Q

what are pharyngeal tonsils known as when enlarged

A

adenoids

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18
Q

location of pharyngeal tonsil

A

midline on roof of nasopharynx

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19
Q

location of palatine tonsil

A

each side of oropharynx, between palatoglossal and palatopharyngeal arches

20
Q

location of lingual tonsils

A

posterior 1/3 of tongue

21
Q

two side of pharyngeal wall join posteriorly to form what

A

pharyngeal raphe

22
Q

superior attachment of pharyngeal raphe

A

pharyngeal tubercle (of occipital bone)

23
Q

inferior attachment of pharyngeal raphe

A

posterior wall of esophagus ( at vertebra C6)

24
Q

attachment of pterygomandibular raphe

A

from pterygoid hamulus to retromolar fossa on mandible

25
Q

function of pterygomandibular raphe

A

join buccinator and superior constrictor mm

26
Q

constrictor muscles have __ direction

A

circular

27
Q

longitudinal muscles have ___ direction

A

vertical

28
Q

constrictor muscles have fascial linings. what are the types

A

internal - pharyngobasilar

external - buccopharyngeal

29
Q

constrictor mm are joined posteriorly to

A

pharyngeal raphe

30
Q

function of constrictor mm

A

constrict or narrow pharyngeal cavity

31
Q

what innervates constrictor mm

A

vagus n via pharyngeal plexus

32
Q

what passes through the gap between skull and superior constrictor m

A
  • PT tube
  • levator veli palatini m
  • ascending pharyngeal a
  • ascending palatine a
33
Q

what passes through the gap between superior and middle constrictor mm and posterior border of mylohyoid m

A
  • stylopharyngeus m
  • hyoglossus m
  • glossopharyngeal n
  • hypoglossal n
  • lingual a and v
  • ascending palatine a
  • stylohyoid ligament
34
Q

what passes through the gap between middle and inferior constrictor mm

A
  • internal laryngeal n

- superior laryngeal a

35
Q

what passes below the inferior constrictor m to reach the larynx

A
  • recurrent laryngeal n

- inferior laryngeal a

36
Q

what branches of ECA supply the upper part of the pharyngeal wall

A
  • ascending pharyngeal a
  • facial a (ascending palatine a, tonsillar a)
  • maxillary a (pharyngeal a, a of the pterygoid canal)
  • lingual a
37
Q

what is the blood supply to the lower part of the pharyngeal wall

A

pharyngeal branches from inferior thyroid a (from subclavian a)

38
Q

what makes up the pharyngeal plexus

A
  • vagus n (pharyngeal branch, superior laryngeal n, external laryngeal n)
  • glossopharyngeal n (pharyngeal branch)
39
Q

sensory innervation to nasopharynx

A

pharyngeal branch of max n

40
Q

sensory innervation to oropharynx

A

glossopharyngeal n

41
Q

sensory innervation to laryngopharynx

A

vagus n

42
Q

Function of salpingopharyngeal m

A

Open the orifice of the pt tube

43
Q

Boundary between oral cavity and oropharngeal isthmus

A

Palatoglossal arches

44
Q

Limits to the c shaped line of pharyngeal wall

A
  • nasal cavities
  • posterior part of medial pterygiod plate
  • pt tube
  • Petrous part of temporal bone
  • pharyngeal tubercle of occipital bone
45
Q

What is posterior to pharyngeal raphe

A

Retropharyngeal space

46
Q

Two muscles that attach the oblique line of thyroid cartilage

A

Thyrohyoid m

Inferior constrictor m

47
Q

what two muscles are innervated by the external laryngeal n (CN 10)

A
  • cricothyroid m

- inferior constrictor m

DDS1-gross anatomy (39 decks)

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