Flashcards in 10.2 The Pharynx and Disorders of the Pharynx Deck (34)
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1
Where is the nasopharynx?
Between base of skull and start of soft palate
2
What epithelium is found in the nasopharynx?
Pseudostratified ciliated columnar epithelium
3
What does the nasopharynx contain?
Adenoids and eustachian tube orifice
4
Where is the oropharynx?
Behind oral cavity. From soft palate to superior border of epiglottis
5
What epithelium is found in the oropharynx?
Stratifies squamous epithelium
6
What does the oropharynx contain?
Palatine tonsils
7
What are the palatine tonsils?
Lymphoid tissue covered in squamous epithelium and encapsulated in large crypts.
8
Where are the palatine tonsils found within the oropharynx?
Between the palatoglossal arch (anterior) and palatopharyngeal (posterior) arch
9
What are the 4 types of lymph tissue which make up Waldeyer's ring?
Pharyngeal
Tubal
Palatine
Lingual
10
Where is the epiglottis?
Between superior border of epiglottis and inferior border of cricoid cartilage
11
What type of epithelia is found in the laryngopharynx?
Stratified squamous epithelium
12
What does the laryngopharynx open up into posteriorly?
Oesophagus
13
What does the laryngopharynx open up into anteriorly?
Trachea
14
What nerve provides sensory innervation to the nasopharynx?
Maxillary nerve
15
What nerve provides sensory innervation to the oropharynx?
Glossophayngeal nerve
16
What nerve provides sensory innervation to the laryngopharynx?
Vagus nerve
17
Which vessels supply the pharynx?
Ascending pharyngeal
Lingual
Facial
Maxillary
18
What vessels drain the pharynx?
Pharyngeal venous plexus
19
Name the 3 circular muscles around the pharynx
Superior constrictor
Middle constrictor
Inferior constrictor
20
What nerve innervates the constrictor muscles of the pharynx?
Vagus
21
Where do the constrictor muscles attach to posteriorly?
Anterior raphe
22
What are the 2 parts of the inferior constrictor?
Thyropharyngeus
Cricopharyngeus
23
Name the 3 longitudinal muscles of the pharynx
Stylopharyngeus
Palatopharyngeus
Salpingopharyngeus
24
Where is the pathway of the stylopharyngeus muscle?
Styloid process to pharynx
25
Where is the pathway of the palatopharyngeus muscle?
Hard palate to pharynx
26
Where is the pathway of the salpingopharyngeus muscle?
Eustachian tube to pharynx
27
Which nerve innervates the stylopharyngeus muscle?
Glossophayngeal nerve
28
Which nerve innervates the salpingopharyngeus and palatopharyngeus muscle?
Vagus nerve
29
How is the pharynx involved with swallowing?
Food pushed from oral cavity to oropharynx
Tongue and suprahyoid muscles pull hyoid and larynx up
Soft palate elevates and nasopharynx is sealed off
Superior constrictors contract
Food bolus passes into laryngopharynx using middle and inferior constricters
Cricopharyngeus relaxes
30
