Lab 26 Larynx

Question 1

Within the piriform recess you will find 2 nerves. What are they?

Answer 1

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)

Question 2

What muscle passes from the arch of the cricoid cartilage (anteriorly) to the muscular process of the arytenoid cartilage (posteriorly)?

Answer 2

lateral cricoarytenoid muscle

Question 3

the opening of the laryngeal cavity formed by the superior margin of the EPIGLOTTIS and the ARYEPIGLOTTIC FOLDS

Answer 3

aditus

Question 4

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.

Answer 4

thyroarytenoid muscle

Question 5

the “true vocal fold” as it contains the vocal cord within the ligament

Answer 5

vocal fold

Question 6

Through the mucosa you will find the lamina of the cricoid cartilage. Superior and lateral to the lamina you will see the ___ ___.

Answer 6

piriform recess

Question 7

formed by two LAMINAE, joined anteriorly to form the angle and its LARYNGEAL PROMINENCE

Answer 7

thyroid cartilage

Question 8

shaped like a ring with a broad, flat LAMINA that is posterior and an ARCH that is anterior

Answer 8

cricoid cartilage

Question 9

the “false vocal fold” more superior of the paired folds

Answer 9

vestibular fold

Question 10

suprahyoid muscles

Answer 10

geniohyoid, mylohyoid, stylohyoid, digastric

Question 11

a ceruved, vertical recess of teh ventricle

Answer 11

saccule of the larynx

Question 12

The _____ muscles of the larynx control the glottis while the ____ muscles affect the overall position of the larynx in the neck.

Answer 12

intrinsic

extrinsic (supra- and infrahyoid)

Question 13

the space between the vocal folds and trachea

Answer 13

infraglottic cavity

Question 14

the large part of the cavity between the aditus and the vestibular folds

Answer 14

vestibule of the larynx

Question 15

infrahyoid muscles

Answer 15

sternohyoid, omohyoid, sternothyroid, thyrohyoid

Question 16

What two muscles are found superior to the posterior cricoarytenoid muscle?

Answer 16

transverse and oblique arytenoid muscles of course

Question 17

The vocal folds + the rima glottidis = ?

Answer 17

the glottis

vocal folds contain vocal cords

Question 18

What muscle is on the external surface of the larynx and covers much of the anterolateral surface of the cricoid cartilage?

Answer 18

cricothyroid

Question 19

What muscle is found on the posterior surface of the lamina of the cricoid cartilage?

Answer 19

posterior cricoarytenoid- attachments to the lamina of the cricoid cartilage ad the arytenoid cartilage

Question 20

The ___ of the larynx, its skeleton, maintains a patent airway. It consists of a series of articulated _____ united by membranes.

Answer 20

cartilage

cartilages

Question 21

larger of two mucosal bumps along the aryepiglottic fold

Answer 21

cuneiform tubercle

Question 22

small bump more posterior and medial that its wedge-shaped cousin the cuneiform cartilage

Answer 22

corniculate tubercle

Question 23

space between the vestibular and vocal folds (part of the transglottic space)

Answer 23

ventricle of the larynx

Question 24

The ___ horn projects superiorly, the _____ horn articulates with the circoid cartilage through the cricothyroid joint.

Answer 24

superior, inferior

Question 25

The interval (gap) between the left and right vocal folds is called the ____ _____.

Answer 25

rima glottidis

Question 26

connects the superior border of the thyroid cartilage with the hyoid bone

Answer 26

thyrohyoid membrane

Question 27

The ____ contains the glottis, a valve that serves the dual function of controlling the airway and producing sound during ____.

Answer 27

larynx, phonation

Question 28

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

Answer 28

epiglottic cartilage

Question 29

pyramid-shaped cartilages sitting atop the superior border of the cricoid cartilage

Answer 29

arytenoid cartilage

Question 30

What innervates the cricothyroid muscle?

Answer 30

external branch of the superior laryngeal nerve