Pharynx Flashcards
This organ is fibromuscular and somewhat funnel-shaped…
Pharynx
The pharynx is _________ and somewhat ______-shaped
Fibromuscular
Funnel
The pharynx is a common chamber of ____ and _____ systems
Digestive
Respiratory
The pharynx extends from the base of the skull to the inferior border of the cricoid cartilage, where it becomes continuous with the _________.
Esophagus
The pharynx has ____ and _____ walls.
The _______ wall is incomplete and it communicates anteriorly with the nasal cavity, oral cavity, and larynx.
Lateral and posterior
Anterior
The _______ is entirely respiratory in function.
Nasopharynx
The Nasopharynx extends from the base of the skull to the ______ ________.
Soft palate
The nasopharynx communicates anteriorly with the nasal cavity via ________ (posterior nasal apertures)
Choanae
The pharyngeal tonsil is a collection of _____ tissue located in the roof of the nasopharynx.
Lymphoid
Pharyngeal opening of auditory tube:
- Located in _____ wall of nasopharynx
- Medial end of cartilage of auditory tube elevates mucosa (_____ ________)
Lateral
Torus Tubarius
____________ fold:
- mucosal fold that extends downward from posterior limb of torus tubarius
- ends in pharyngeal wall
- covers __________ muscle
Salpingopharyngeal
Salpingopharyngeus muscle
__________:
-Mucosal elevation inferior to pharyngeal opening of auditory tube caused by levator veli palatini
Torus levatorius
______ _______:
-collection of lymphoid tissue around pharyngeal opening of auditory tube
Tubal tonsil
The oropharynx extends from the ___ _____ to the superior border of the ______.
Soft palate
Epiglottis
The oropharynx communicates anteriorly with the oral cavity via the _________ _________.
Oropharyngeal isthmus
_________ tonsil:
-located in its lateral wall between palatoglossal and palatopharyngeal arches (in tonsillar fossa/sinus)
Palatine
________ _________:
- Two small depressions located between epiglottis and root of tongue by 3 glossoepiglottic folds (1 median 2 lateral)
- One on either side of median glossoepiglottic fold
Epiglottic valleculae
Pharyngeal lymphoid ring (___________ ring)
- Accumulations of lymphoid tissue at entrance of pharynx from nasal and oral cavities
- Components: pharyngeal, tubal, lingual, and palatine tonsils
Waldeyer’s ring
The point at which the pharynx becomes the esophagus is divided by the ______ __________.
the cricoid cartilage.
The laryngopharynx is also referred to as the ______.
Hypopharynx
The _________ fossa (recess) is a depression inferolateral to the laryngeal inlet and medial to lamina of the thyroid cartilage.
Piriform
Name the layers from Internal to External of the Pharyngeal wall…
Mucosa
Submucosa
Muscular coat
Buccopharyngeal fascia
The pharynx is separated from the vertebral column and anterior vertebral muscles and their fascia by _____ ______ tissue of the ___________ space.
-This allows elevation and depression of the pharynx during ______.
Loose connective
Retroopharyngeal
Swallowing
There are __ constrictor muscles of the Pharynx that form an external, predominantly ________ shaped muscle layer.
3 (superior, Middle, and inferior)
Circular
The ______ muscles of the pharynx from mostly an internal muscle layer. They consist of the:
1
2
3
Longitudinal
1-stylopharyngeus
2-palatopharyngeus
3-salpinogopharyngeus
Inferior Constrictor:
The ______ muscle:
- Lower fibers of inferior constrictor (originate from cricoid cartilage)
- Acts as a sphincter at the entrance of esophagus preventing air from entering digestive tract
Cricopharyngeus muscle
Nerve Supply to the Pharynx:
Pharyngeal plexus:
- Formed by pharyngeal branches of _______ nerve, _____ nerve, and superior cervical sympathetic ganglion.
- ______ fibers are sensory, ____ fibers are motor, and sympathetic fibers are _________.
Glossopharyngeal Vagus Glossopharyngeal Vagal Vasomotor
___________: (means swallowing)
Deglutition
