Lab 26 Larynx Flashcards
Within the piriform recess you will find 2 nerves. What are they?
internal branch of the superior laryngeal nerve and the inferior laryngeal nerve (a continuation of the recurrent laryngeal nerve which changes its name at the cricothyroid joint)
What muscle passes from the arch of the cricoid cartilage (anteriorly) to the muscular process of the arytenoid cartilage (posteriorly)?
lateral cricoarytenoid muscle
the opening of the laryngeal cavity formed by the superior margin of the EPIGLOTTIS and the ARYEPIGLOTTIC FOLDS
aditus
Superior to the lateral cricoarytenoid muscle the ____ muscle attaches to the interior of the thyroid cartilage near its angle and to the arytenoid cartilage posteriorly.
thyroarytenoid muscle
the “true vocal fold” as it contains the vocal cord within the ligament
vocal fold
Through the mucosa you will find the lamina of the cricoid cartilage. Superior and lateral to the lamina you will see the ___ ___.
piriform recess
formed by two LAMINAE, joined anteriorly to form the angle and its LARYNGEAL PROMINENCE
thyroid cartilage
shaped like a ring with a broad, flat LAMINA that is posterior and an ARCH that is anterior
cricoid cartilage
the “false vocal fold” more superior of the paired folds
vestibular fold
suprahyoid muscles
geniohyoid, mylohyoid, stylohyoid, digastric
a ceruved, vertical recess of teh ventricle
saccule of the larynx
The _____ muscles of the larynx control the glottis while the ____ muscles affect the overall position of the larynx in the neck.
intrinsic
extrinsic (supra- and infrahyoid)
the space between the vocal folds and trachea
infraglottic cavity
the large part of the cavity between the aditus and the vestibular folds
vestibule of the larynx
infrahyoid muscles
sternohyoid, omohyoid, sternothyroid, thyrohyoid
What two muscles are found superior to the posterior cricoarytenoid muscle?
transverse and oblique arytenoid muscles of course
The vocal folds + the rima glottidis = ?
the glottis
vocal folds contain vocal cords
What muscle is on the external surface of the larynx and covers much of the anterolateral surface of the cricoid cartilage?
cricothyroid
What muscle is found on the posterior surface of the lamina of the cricoid cartilage?
posterior cricoarytenoid- attachments to the lamina of the cricoid cartilage ad the arytenoid cartilage
The ___ of the larynx, its skeleton, maintains a patent airway. It consists of a series of articulated _____ united by membranes.
cartilage
cartilages
larger of two mucosal bumps along the aryepiglottic fold
cuneiform tubercle
small bump more posterior and medial that its wedge-shaped cousin the cuneiform cartilage
corniculate tubercle
space between the vestibular and vocal folds (part of the transglottic space)
ventricle of the larynx
The ___ horn projects superiorly, the _____ horn articulates with the circoid cartilage through the cricothyroid joint.
superior, inferior
The interval (gap) between the left and right vocal folds is called the ____ _____.
rima glottidis
connects the superior border of the thyroid cartilage with the hyoid bone
thyrohyoid membrane
The ____ contains the glottis, a valve that serves the dual function of controlling the airway and producing sound during ____.
larynx, phonation
unpaired, situated between the tongue and the hyoid bone
its stalk is attached to the internal surface of the angle formed by the thyroid laminae
epiglottic cartilage
pyramid-shaped cartilages sitting atop the superior border of the cricoid cartilage
arytenoid cartilage
What innervates the cricothyroid muscle?
external branch of the superior laryngeal nerve
