Ch 50: Larynx

Question 1

The
supraglottis consists of ___

Answer 1

The
supraglottis consists of the epiglottis, false vocal cords, ventricles, aryepiglottic
folds, and the arytenoids

Question 2

The glottis includes the_____

Answer 2

The glottis includes the floor of the ventricle,
interarytenoid area, true vocal cords, and the anterior commissure

Question 3

The subglottis
is located _______

Answer 3

The subglottis
is located below the vocal cords

Question 4

The axial line of demarcation between the glottic and supraglottic larynx is
the ________

Answer 4

The axial line of demarcation between the glottic and supraglottic larynx is
the apex of the ventricle.

Question 5

The demarcation between the glottis and subglottis is
ill defined, but the subglottis is considered to extend from a point __ below
the free margin of the vocal cord to the inferior border of the cricoid cartilage or
_______below the apex of the ventricle

Answer 5

The demarcation between the glottis and subglottis is
ill defined, but the subglottis is considered to extend from a point 5 mm below
the free margin of the vocal cord to the inferior border of the cricoid cartilage or
10 mm below the apex of the ventricle

Question 6

The shell of the larynx is formed by the hyoid bone, thyroid cartilage, and
cricoid cartilage; the ______is the only complete ring of the upper
airway.

Answer 6

The shell of the larynx is formed by the hyoid bone, thyroid cartilage, and
cricoid cartilage; the cricoid cartilage is the only complete ring of the upper
airway.

Question 7

The more mobile interior framework is composed of _______

Answer 7

The more mobile interior framework is composed of the heart-shaped
epiglottis and the arytenoid, corniculate, and cuneiform cartilages.

Question 8

. The _____
is elastic cartilage; ossification does not occur, and even focal calcification is
rare

Answer 8

. The epiglottis
is elastic cartilage; ossification does not occur, and even focal calcification is
rar

Question 9

The epiglottis is joined superiorly to the hyoid bone by the hyoepiglottic
ligament. The epiglottis is joined to the thyroid cartilage by the thyroepiglottic
ligament at a point just below the thyroid notch and above the anterior
commissure. This area of attachment is the ___of the epiglottis.

Answer 9

The epiglottis is joined superiorly to the hyoid bone by the hyoepiglottic
ligament. The epiglottis is joined to the thyroid cartilage by the thyroepiglottic
ligament at a point just below the thyroid notch and above the anterior
commissure. This area of attachment is the petiole of the epiglottis.

Question 10

The extrinsic muscles are
concerned primarily with swallowing. The cricothyroid muscle draws the larynx
______ when contracting. The consequence is increased vocal
cord tension leading to increased pitch of the voice.

Answer 10

The extrinsic muscles are
concerned primarily with swallowing. The cricothyroid muscle draws the larynx
anteriorly and inferior when contracting. The consequence is increased vocal
cord tension leading to increased pitch of the voice.

Question 11

The cricothyroid muscle is innervated by the
____

Answer 11

is innervated by the
external branch of the superior laryngeal nerve

Question 12

The intrinsic
muscles of the larynx are innervated by _______

Answer 12

The intrinsic
muscles of the larynx are innervated by the recurrent laryngeal nerve