Pterygopalatine Fossa-Sievert Flashcards
(121 cards)
What is the opening to the pharynx called?
the aditus
Where is the vestibule found?
from the aditus to the vestibular folds (false vocal cords)
Where is the ventricle found?
b/w the false & true vocal cords
What is the fcn of the false vocal cords?
protective in nature as they overly the true vocal cords
Where is the infraglottic cavity?
this is found below the true vocal folds; extends down to the inferior cricoid cartilage
What do you find below the infraglottic cavity?
tracheal rings
Ventricles are an important space for what?
phonation
Describe what happens to the aditus when you swallow.
the larynx is pulled up
the tongue is pushed back
the epiglottis is pushed down closer to the cricoid cartilage
aditus closes (tho not completely)
What type of covering does the larynx have?
a mucosal lining
The cartilage that makes up the larynx is held together by what ?
ligaments
What is the space called b/w the epiglottis & the tongue (back)?
vallecula
Describe the structure of the thyroid cartilage.
It is a 2/3 protective covering that is incomplete in the posterior aspect.
What are the arytenoids?
these are processes that are found posteriorly sitting on top of the cricoid cartilage
What are the 2 processes that are found on the arytenoids?
the vocal process & muscular process
What is the function of the vocal process of the arytenoid?
there is a ligament on this vocal process that extends anteriorly to the thyroid & makes up a part of the true vocal cords
What is the function of the muscular process of the arytenoid?
it has muscles attached to it that are capable of opening or closing the vocal cords
Describe the structure & location of the cricoid cartilage.
this is located inferior to the thyroid cartilage. It is a complete cartilagenous ring. It is taller in the back than it is in the front. Mullet.
Describe the structure of the membrane that connects the thyroid cartilage & cricoid cartilage.
cricothyroid membrane. it has a mucosal lining & elastic core
T/F The cricoid & thyroid are capable of moving w/ respect to one another.
TRUE! They are rocking forwards or backwards w/ respect to one another
How do the cricoid & thyroid cartilages rock backwards on each other?
via the cricothyroid joint–synovial.
they rock on a transverse axis.
What is the membrane called that runs between the hyoid bone & the thyroid cartilage? there is an important hole in this-what is it called?
thyrohyoid membrane
**hole: for passage of the internal branch of the superior laryngeal nerve (branch of CN10).
What happens to the vocal ligament that is attached to the arytenoid when you rock the thyroid cartilage back & forth?
Rock the thyroid cartilage forward–ligament becomes tight.
Rock the thyroid cartilage back–ligament becomes loose.
What is the difference b/w male & female vocal ligaments?
Women have shorter vocal ligaments than men. Thus, they have higher voices.
What are 2 important synovial joints that you find in the larynx?
- b/w the cricoid & thyroid cartilages.
2. b/w the arytenoid & the cricoid.