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Anatomy > Pharynx > Flashcards

Pharynx Flashcards

1
Q

BS of hard palate

A
  1. Greater palatine branch of maxillary A

Drain into pterygoid venous plexus

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2
Q

NS of hard palate

A

Greater palatine and nasopalatine branches of pterygopalatine ganglion

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3
Q

Lymphatics of hard palate

A

Upper cervical lymph nodes

Retropharyngeal lymph nodes

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4
Q

Passavant’s ridge

A
  • Upper fibres of palatopharyngeus pass deep to mucous membrane to form sphincter internal to sup. constrictor
  • Raises a ridge called passavants ridge
  • When soft palate is elevated, it comes into contact with this ridge
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5
Q

BS of soft palate

A
  1. Greater palatine branch of maxillary A
  2. Ascending palatine branch of facial A
  3. Palatine branch of ascending pharyngeal A
    Pterygoid and tonsillar venous plexus
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6
Q

Lymphatics of soft palate

A

Upper deep cervical

Retropharyngeal

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7
Q

Boundaries of pharynx

A 
A: Nasal, oral cavity, larynx
P: Prevertebral fascia
S: Base of skull, body of sphenoid
I: continues with oesophagus
Sides:
1. Medial pterygoid plate
2. Mandible
3. Tongue
4. Hyoid bone
5. Thyroid, cricoid cartilage
6. Styloid process
7. Carotids
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8
Q

Location of palatine tonsil

A

tonsillar sinus b/w palatoglossal and palatopharyngeal arches

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9
Q

Medial surface of palatine tonsil

A
  • stratified squamous epithelium
  • 12-15 crypts
  • large crypts called intratonsillar clefts
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10
Q

Lateral surface of palatine tonsil

A
  • extension of pharyngobasilar fascia forms hemicapsule

- pierced by tonsillar A

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11
Q

Bed of tonsil

A

In to out

  1. Pharyngobasilar fascia
  2. Superior constrictor
  3. Palatopharyngeus
  4. Buccopharyngeal fascia
  5. Styloglossus
  6. Glossopharyngeal N
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12
Q

BS of palatine tonsil

A
  1. Tonsillar branch of facial A
  2. Ascending palatine branch of facial
  3. Dorsal lingual A
  4. Ascending pharyngeal branch
  5. Greater palatine A
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13
Q

Lymphatics of palatine tonsil

A

Jugulodigastric node

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14
Q

Nerve supply of palatine tonsil

A

Glossopharyngeal

Lesser palatine

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15
Q

Layers of pharyngeal wall

A

In to out

  1. Mucosa
  2. Submucosa
  3. Pharyngobasilar fascia - thick in part b/w sup. constrictor and skull
  4. Muscular - 6 muscles
  5. Pharygeal plexus of nerves and veins
  6. Buccopharyngeal fascia
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16
Q

Origin of superior constrictor

A
  1. Pterygoid hamulus
  2. Pterygomandibular raphae
  3. Mandible
  4. Side of tongue
17
Q

Origin of middle constrictor

A
  1. Stylohyoid ligament

2. Lesser and greater cornu of hyoid

18
Q

Origin of inferior constrictor

A

Cricopharyngeus - cricoid

Thyropharyngeus - Oblique line and inferior cornu of thyroid cartilage

19
Q

Nerve supply of pharynx

A

1 Pharyngeal branches of vagus, glossopharyngeal and superior cervical sympathetic ganglion

  1. Motor - Cranial accessory N
  2. Sensory - Glossopharyngeal N
  3. Taste - Internal laryngeal N
20
Q

BS of pharynx

A
  1. Ascending pharyngeal A
  2. Ascending palatine
  3. Tonsillar
  4. Dorsal lingual branch
  5. Greater palatine, pterygoid, pharyngeal
21
Q

Lymphatic drainage of pharynx

A

Retropharyngeal

Deep cervical

22
Q

Relations of bony part of eustachian tube

A

S: Canal for tensor tympani
M: Carotid canal
L: Chorda tympani, auriculotemporal N

23
Q

Relations of cartilagenous part of auditory tube

A

Ant-lat: Tensor veli palatini, Otic ganglion, Chorda tympani, Middle meningeal A
Post-med: Petrous temporal, tensor veli palatini

24
Q

BS of auditory tube

A
  1. Ascending pharyngeaL
  2. Middle meningeal
  3. Artery of pterygoid canal
    Pharyngeal and pterygoid venous plexus
25
Q

Nerve supply of auditory tube

A
  1. Maxillary N
  2. Mandibular N
  3. Glossopharyngeal N

Anatomy (23 decks)

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