Nasopharynx and interior of the oropharynx (dave's notes) Flashcards

1
Q

What marks the upper and lower margins of the nasopharynx?

A

From the base of the skull to the lower border of the soft palate

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2
Q

What prevents the nasophrynx from collapsing?

A

The pharyngobasilar fascia

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3
Q

How does the upper part of the nasopharynx communicate with the nose?

A

Through the choanae

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4
Q

Where is the pharyngeal tonsil located? How else may this be known?

A

Sits high up on the posterior wall at the level of the basiocciput. = adenoids if enlarged.

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5
Q

what other anatomical features of note are found in the nasopharynx?

A

The pharyngeal recess and auditory openings

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6
Q

Where is the pharyngeal recess located?

A

A vertical slit behind the openings of the auditory tubes

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7
Q

Where does the oropharynx start and finish?

A

From the lower part of the soft palate to the upper fodder of the epiglottis

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8
Q

What marks the posterior aspect of the oropharynx?

A

The three constrictors

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9
Q

What is found at the lateral margins of the oropharynx?

A

The palatopharyngeal and palatoglossal arches. The palatine tonsils lie between.

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10
Q

Where is the palatine tonsil found?

A

Lying between the palatopharyngeal and palatoglossal arches, lying on the lower part of the superior constrictor.

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11
Q

Describe the surface of the palatine tonsil

A

??AP borders
??upper lower poles?
surface crypts
lateral surface forms a capsule from an extension of the pharyngobasilar facia

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12
Q

What is the blood supply to the palatine tonsil? Via what course does it reach the palatine tonsil?

A

The tonsillar branch of the facial artery. Reaches the palatine tonsil by arching over styloglossus and periling the superior constrictor.

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13
Q

Describe the venous drainage of the palatine tonsil. What is the clinical significance of this?

A

To the pharyngeal plexus (pharyngeal/external palatine vein is particularly large and is the usual cause for haemorrhage

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14
Q

What is the lymphatic drainage of the palatine tonsil?

A

To the deep cervical group mostly to the jugulodigastric nodes

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15
Q

What is the nerve supply to the mucosa overlying the palatine tonsil?

A

The tonsillar branch of the glossopharyngeal nerve

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16
Q

What marks the interior part of the laryngeal part of the pharynx?

A

From the upper fodder of the epiglottis to the cricoid cartilage (C6). Becomes continuous with the oesophagus