This site is 100% ad supported. Please add an exception to adblock for this site.

Pharynx and Larynx


undefined, object
copy deck
- superior boundary
base of occipital bone
- inferior boundary
esophagus and laryxn at ~C6 level
- posterior boundary
retropharyngeal space and the alar fascia
- anterior boundary
posterior nasal choanae, post 1/3 tong
most inferiorly -- posterior surface of larynx
superior region of pharynx, receives posterior opening of nasal cavity and is superior to the soft palate
can visualize when looking into a patient's mouth

posterior to oral cavity

inferior to soft palate

superior to epiglottis
inferior region

posterior to larynx

inferior to epiglottis

superior to level of cricoid cartilage / C6
To which structure do all the pharyngeal contricter M's attach?
median pharyngeal raphe
superior pharyngeal constrictor
- origin
pterygoid hamulus, posterior end of mylohyoid line of mandible, and the pterygomandibular raphe
middle pharyngeal constrictor
- origin
stylohyoid L & greater and lesser horns of the hyoid bone
inferior pharyngeal constrictor
- origin
oblique line of thyroid cartilage & lateral surface of the cricoid cartilage
where does all the motor innervation to the pharynx come from? what are the exceptions?
CN X (Vagus)


stylopharyngeus (CN IX)

tensor palati (V3)
what are the three main fxns of the larynx?
connects oropharynx with trachea for respiration

serves as valve to protect the airway during swallowing

organ for vocalization
what is special about the cricoid cartilage?
it is the only complete cartilaginous ring in the respiratory tree
what provides motor innervation to all intrinsic muscles of the larynx?
recurrent laryngeal N from CN X (Vagus)
what provides motor innervation to the lone external muscle of the larynx?
cricothyroid M -- innervated by external laryngeal N

Deck Info