Pharynx, Larynx, Soft Palate Flashcards
Most rounded cartilage
cricoid
3 unpaired cartilage
Thyroid cartilage-hyaline
Cricoid cartilage-hyaline
Epiglottic cartilage-elastic
Largest laryngeal cartilage
thyroid cartilage
Thyroid cartilage passes through
Internal branch of superior laryngeal nerve
Superior laryngeal (of superior thyroid artery)
Cartilage with the only complete ring of cartilage in respiratory system
Cricoid cartilage
3 paired cartilages
Arytenoid cartilage-hyaline
Corniculate cartilage-elastic
Cuneiform cartilage-elastic
shape of 3 paired cartilages
Arytenoid cartilage- pyramid shape
Corniculate c.-conical shape
cuneiform c.-club shape
Extrinsic laryngeal ligaments
Thyrohyoid membrane
Median cricothyroid ligament
cricotracheal ligament
Intrinsic laryngeal ligaments
True vocal cord
false vocal cord
Cricothyroid is innervated by
INNERVATED BY CN X (EXTERNAL BRANCH OF SUPERIOR LARYNGEAL NERVE)
Ant. to post. palatopharyngeal arch etc.
Palatoglossal arch
Palatine tonsil
Palatopharyngeal arch
Tensor veli palatini innervated by
V3
The tendon that wraps around pterygoid hamulus like a pulley?
tensor veli palatini
Superior constrictor (of pharynx) OIAN?
O: pterygoid hamulus, pterygomandibular raphe, side of tongue
I: pharyngeal tubercle, pharyngeal raphe
A: constricts uppper portion of the pharynx
N: CN X
Longitudinal muscles of the pharynx?
Palatopharyngeus
Salpingopharyngeus
Stylopharyngeus
Salipingopharygeus muscle OIAN?
O; Auditory tube
I: thyroid cartilage
A: elevates pharynx
N: CN X
Deglutition aka swallowing in a 24 hr period:
Swallow how many times a day?
relating to feeding?
Around ___ of all swallows occur during sleep
600-1000 times a day
150 related to feeding
1/12
Shape of 3 unpaired cartilages?
Thyroid cartilage-hyaline
Cricoid cartilage-ring
Epiglottic cartilage-leaf-shaped
Site of common lodging of sharp ingested food?
Piriform fossa
Rima vestibuli
triangular opening
between vestibular folds
rima glottidis
Narrower triangular openings
Between vocal cords
Rima vestibubuli and glottidis can open and close by movement of?
arytenoid cartilage
True vocal cord is ___ to the false vocal cord.
inferior
Sphenoid sinus drains into the
sphenoethmoid sinus
5 muscles of palate with innervations
Tensor veli palatini (V3) Levator veli palatini (X) palatopharangeus (X) palatoglossus (X) musculus uvulae X) Try Love P^2 More
Wraps around medial pterygoid hamulus on sphenoidal medial pterygoid plate and acts like a pulley?
Tensor veli palatini
pharynx contains 3 tonsils
pharyngeal (ADENOID if enlarged) (1)
Palatine (2)
Lingual (1)
3 pharyngeal constrictor muscles? innervated by?
superior constrictor
middle constrictor
inferior constrictor
CNX via pharyngeal plexus
constrictor muscles of pharynx joined together by?
pharyngeal raphe
Stylopharyngeus innervated by
CN IX
Sensory innervation of pharynx
Nasopharynx (V3)
Oropharynx (CN IX)
Laryngopharynx (CN X)
What includes the adenoid or pharyngeal tonsil and also includes opening of eustachian tube?
nasopharynx
What includes salpingopharyngeal fold, palatine tonsils, (2) lingual tonsil (1), and epiglottic vallecula?
oropharynx
uvulopalatopharyngoplasty
Removal of palatine tonsils, uvula, part of soft palate
What is atop of esophagus (C6(?
Laryngopharynx
In a 24 hr period you swallow?
How many related to feeding?
About ___ of all swallows occurs during sleep
600-1000 times a day
150 related to feeding
1/12
Posterior cricoarytenoid___ rima glottidis
opens/abducts
Instrinsic muscles of larynx: Lateral cricoarytenoid, transverse arytenoid, and oblique arytenoid all??
closes (adducts) rima glottidis
All intrinsic muscles of larynx innervated by
Inferior (recurrent) laryngeal nerve (CN X)
A of tensor veli palatini
Tenses soft palate, pulls soft palate laterally, opens auditory tube
A of Levator veli palatini
Elevates soft palate, pulls soft palate posteriorly (helps close nasopharynx)
A of musculus uvulae
elevates uvula (close nasopharynx), pulls uvula laterally
Between base of skull and superior constrictor
Auditory tube
Levator veli palatini m.
Ascending pharyngeal a. -From ECA
Ascending palatine a. -From facial a.
Between the superior and middle constrictors
Stylopharyngeus m.
Glossopharyngeal n.
Tonsillar branch-From facial a.
Styloyhyoid ligament
Between the middle and inferior constrictors
Internal branch of superior laryngeal n.
Superior laryngeal a. and v.–From superior thyroid a., from ECA
Inferior to the inferior constrictor
Recurrent laryngeal n.
Inferior laryngeal a. and v.–From inferior thyroid a., from thyrocervical trunk
Middle constrictor OIAN
O: Stylohyoid ligament, hyoid
I: Pharyngeal raphe
A: Constricts middle portion of the pharynx
N: CNX, via pharyngeal plexus
Inferior constrictor OIAN
O: Thyroid cartilage, cricoid cartilage
I: Pharyngeal raphe
A: Constricts lower portion of the pharynx
N: CNX, via pharyngeal plexus
Palatopharyngeus OIAN
O: Posterior border of hard palate, palatine aponeurosis
I: Thyroid cartilage
A: Elevates pharynx, helps close the nasopharynx
N: CNX, via pharyngeal plexus
Sylopharyngeus m. OIAN
O: Styloid process
I: Thyroid cartilage
A: Elevates pharynx, expands the sides of the pharynx
N: CNIX