pharynx, larynx and nasal cavity Flashcards
consequence of compression of sympathetic trunk in pharynx area
Horners syndrome:
myosis, anhydrosis and ptosis
name the fascia over the constrictor muscles of the pharynx
buccopharyngeal fascia
what is the nerve overlying the stylopharyngeus called?
glossopharyngeal n
what is the fascia that is often fused with the buccopharyngeal fascia?
pharyngobasilar fascia
what lies superficial to the middle constrictor?
the hyoglossus
what are the two muscles making up the inferior constrictor?
thyropharyngeus and cricopharyngeus
what is the consequence of there is poor antagonistic coordination between the inferior constrictors and why?
There could be an outpouching of the mucous membrane called zenkers diverticulum. It happens because the difference in muscle fibre direction of the inferior constrictors creates an area of weakness- killian’s triangle.
purpose of longitudinal muscles
elevate pharynx in swallowing
name the fascia that fills the gap between the superior constrictor and base of skull
pharyngobasilar fascia
What isthe emergency procedure where the cricothyroid membrane is opened
Cricothyroidectomy
consequence of a deviated septum?
Snoring/ difficult with nasal breathing
inability to smell
anosmia
function of the infraorbital nerve
seensation to skin of midface
cranial nerve that supplies motor innervation to intrinsic and extrinsic tongue muscles
hypogossal n/CNXII
nerve carrying general sensation from the tongue to CNS
trigeminal(mandibular) nerve
which nerve carries special(taste) sensation from tongue to CNS
Anterior 2/3rd of tongue: facial nerve
Posterior 1/3rd of tongue: glossopharyngeal n.
which two muscles form the soft palate and what is their innervation?
What is the consequence of paralysis to these?
Levator palatini- CNX/ vagus n.
Tensor palatini- V3
Inability to elevate pharynx and open the auditory tube
role of epiglottis
close off airwayduring swallowing
intrinsic muscles of larynx that opens airway
Posterior cricoarytenoids
intrinsic larynx muscle that closes airway?
Lateral cricoarytenoids and transverse arytenoid
intrinsic m. of larynx that increases pitch
Cricothyroid
intrinsic m. of larynx that decreases pitch
thyroarytenoid
Following thyroid surgery, it was noted that a patient frequently aspirated fluid into her lungs. Upon examination it was determined that the area of the piriform recess above the vocal fold of the larynx was numb. Which nerve is most likely to be injured?
internal laryngeal nerve
Irrigation of the maxillary sinus through its opening is a supportive measure to acceslerate the resolution of a maxillary sinus infection. Which nasal space is most suitable to approach the sinus opening?
middle meatus
