Podcast
Questions and Answers
What is the primary function of the cricopharyngeus muscle during swallowing?
What is the primary function of the cricopharyngeus muscle during swallowing?
- To initiate the swallowing reflex
- To prevent air from entering the esophagus (correct)
- To contract the pharynx for better food propulsion
- To facilitate the passage of food into the larynx
Which of the following arteries is NOT involved in supplying blood to the pharynx?
Which of the following arteries is NOT involved in supplying blood to the pharynx?
- Ascending pharyngeal artery
- Descending thoracic artery (correct)
- Tonsillar artery
- Pharyngeal branch of the maxillary artery
Which part of the pharynx is connected to the larynx?
Which part of the pharynx is connected to the larynx?
- Pharyngeal inlet (correct)
- Oropharynx
- Nasopharynx
- Laryngopharynx
From which artery does the ascending palatine artery branch off?
From which artery does the ascending palatine artery branch off?
Which vein is primarily responsible for draining venous blood from the pharynx?
Which vein is primarily responsible for draining venous blood from the pharynx?
Flashcards
Pharynx location
Pharynx location
The pharynx is the throat region behind the larynx.
Cricopharyngeus function
Cricopharyngeus function
The cricopharyngeus muscle prevents air from entering the esophagus during swallowing.
Ascending pharyngeal artery
Ascending pharyngeal artery
A branch of the external carotid artery, supplying blood to the pharynx.
Pharyngeal venous drainage
Pharyngeal venous drainage
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Thyropharyngeus location
Thyropharyngeus location
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Study Notes
Pharynx Anatomy
- Part of the pharynx located behind the larynx
- Connected to the larynx through the laryngeal inlet
- Inferior constrictor muscle has a superior portion (thyropharyngeus) located opposite the thyroid cartilage
- Inferior constrictor muscle has an inferior portion (cricopharyngeus) located opposite the cricoid cartilage; this section prevents air from entering the esophagus during swallowing
Pharynx Blood Supply
- Supplied by the ascending pharyngeal artery (branch of external carotid artery)
- Supplied by ascending palatine artery (branch of facial artery)
- Supplied by tonsillar artery (branch of facial artery)
- Supplied by a pharyngeal branch of the maxillary artery
Pharynx Venous Drainage
- Veins of the pharynx converge to form the pharyngeal plexus of veins
- Pharyngeal plexus drains into the internal jugular vein
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Description
This quiz covers the anatomy, blood supply, and venous drainage of the pharynx. Explore the connection of the pharynx to the larynx, the muscles involved, and the relevant arteries and veins. Test your knowledge on the important structures and functions related to the pharynx.
