Pharynx Flashcards
Which muscle is being indicated here?
Stylopharyngeus
What muscles and structures are being indicated here?
The pharynx has a complete circular tube of muscle
What is the upper oesophageal stricture?
A complete circle of skeletal muscle called the cricopharyngeus at the level of the C6 vertebrae, at the junction between the laryngopharynx and the oesophagus
Where does the midde constrictor of the pharynx originate?
The lesser and greater horns of the hyoid bone
Where does the inferior constrictor arise from?
Just behind the oblique line of the thyroid cartilidge and the side of the cricoid cartilidge
Where does the stylopharyngeus muscle originate and insert?
Styloid process
Pharynx, between the layers of the superior and middle constrictors
What is the nerve supply to the stylopharyngeus?
CN IX
Which muscle of the pharynx connects the eustachian tubes to the thyroid cartilidge?
Salpingopharyngeus
Which muscle connects the soft palate to the thyroid cartilidge?
Palatopharyngeus
Which nerve supplies the palatopharyngeus and the salpingopharyngeus?
CN X
What is the nerve supply of the longitudinal muscles of the pharynx?
CN IX and CN X
What is the function of the longitudinal muscles of the pharynx?
Elevate the larynx towards the epiglottis to reduce the size of the laryngeal inlet during swallowing, reducing chance of aspiration
What are the tonsils involved in Waldeyer’s ring?
Pharyngeal tonsil
Tubal tonsils
Palate associated lymphoid tissue
Palantine tonsil
Lingual tonsil
Where are the pharyngeal tonsils located?
In the mucosa of the roof of the nasopharynx
Where are the tubal tonsils located?
In the mucosa of the eustachian tube opening
