Pharynx Flashcards
____ muscolofacial 1/2 cylinder
pharynx
___ links oral and nasal cavities
pharynx
the pharynx links __ and __
oral cavity and nasal cavity
the pharynx is common for __ and __
respiration and digestive tract
nasopharynx is from __ and __
base of skull to soft palate
oropharynx is from __ to __
soft palate to epiglottis
laryngopharynx is from __ to __
epiglottis to C6 vertebral levels
What is after the laryngopharynx?
esophagus
What are the 5 main structures found in the nasopharynx?
- auditory (/eustachian/pharyngotympanic) tube orifice
- torus tubarius
- pharyngeal recess
- pharyngeal tonsils
- salpingopharyngeal fold
What are all of the names for the auditory tube orifices
auditory tube orifice
eustachian tube orifice
pharygotympanic tube orifice
part of nasopharynx
Auditory tube orifice is posterior to ___
inferior concha
part of nasopharynx
Auditory tube orifice serves as a connection between __ and __
pharynx and middle ear
part of nasopharynx
Torus tubarius is composed of ___
auditory tube cartilage
part of nasopharynx
Torus tubarius is found posterior to ___
auditory tube orifice
part of nasopharynx
The posterior extent of torus tubarius is ___
the beginning of the salpingopharyngeal fold
part of nasopharynx
The pharyngeal recess is posterior to ___
torus tubarius
part of nasopharynx
What is the pharyngeal recess?
a groove along the lateral wall of the pharynx
part of nasopharynx
The pharyngeal recess is a groove along the __ wall of the pharynx
lateral
part of nasopharynx
The pharyngeal tonsils are ___ to torus tubarius
posterosuperior
part of nasopharynx
What is the salpingopharyngeal fold
a mucous membrane covering salpingopharyngeal muscle
part of nasopharynx
The oropharynx is __ to the oral cavity
posterior
part of nasopharynx
What are the 5 main structures found in the oropharynx
- palatoglossal arch
- palatopharyngeal arch
- palatine tonsils
- valleculae
- pallatopharyngeal sphincter
What is the palatoglossal arch?
mucosal fold over the palatoglossal muscle
first arch; anteriorly
part of oropharynx
What is the palatopharyngeal arch?
mucosal fold over the palatopharyngeal muscle; second arch; posteriorly
part of oropharynx
Where are the palatine tonsils located?
in tonsilar bed between 2 arches (palatopharyngeal arch and palatoglossal arch)
part of oropharynx
The vallecula is a fold posterior to ____ and anterior to ____
posterior to tongue
anterior to epiglottis
part of oropharynx
What is considered the “roof of the spit gutter” (holds saliva while breathing)
the vallecula of the oropharynx
How does the valecula of the oropharynx drain when the epiglottis is down?
laterally into the “lateral spit gutters” (piriform recess of laryngopharynx)
The palatopharyngeal sphincter is found within what muscle?
superior pharyngeal constrictor muscle
What does the palatopharyngeal sphincter do when swallowing?
closes around the end of the soft palate and seals off the opening between the oropharynx and nasopharynx to bush bolus up against roof before pushing it down
Palatopharyngeal sphincter is a structure of the __pharynx
oro
What are the 7 mains tructures/vessels/nerves of the laryngopharynx
- epiglottis
- laryngeal cartilage
- piriform recess
- internal laryngeal nerve
- superior laryngeal vessels
- recurrent laryngeal nerve
- inferior laryngeal vessels
Laryngopharynx route air and food to the ____
esophagus and trachae
What are the 4 functions of the larynx?
- phonation
- regulate size of opening between vocal cords
- prevent foreign bodies from entering the airway
- act as a sphincter
What is the “lateral spit gutter”
piriform recess of the laryngopharynx
What is the piriform recess?
lateral spit gutters located in the laryngopharynx
The piriform recess extends laterally to the _____ (within the laryngopharynx)
thyroid cartilage
Internal laryngeal nerve descends beneath ____
mucous membrane
in laryngopharynx
Superior laryngeal vessels descend beneath ___
mucous membrane
in laryngopharynx
What nerves/vessels DESCEND beneath the mucous membrane in laryngopharynx?
internal laryngeal nerve
superior laryngeal vessels
Superior laryngeal nerve is a branch off of ____
CN 10
Recurrentl aryngeal nerve ascends beneath ____
mucous membrane
in laryngopharynx