Larynx/Laryngopharynx

Question 1

borders of the larynx?

Answer 1

starts at epiglottis

ends at C6/lower cricoid cartilage

Question 2

what part of the laryngeal skeleton is open?

Answer 2

posteriorly
hyoid bone
thyroid cartilage

Question 3

what are the 3 structures of the laryngeal skeleton?

Answer 3

hyoid bone
thyroid cartilage
cricoid cartilage

Question 4

cricoid cartilage is open or closed posteriorly?

Answer 4

closed

Question 5

what is the arytenoid cartilage? what movements do they do? what are the movements for?

Answer 5

attached to cricoid cartilage
1. swivel
2. slide together and apart
movements to allow for phonation

Question 6

epiglottic cartilage attaches where?

Answer 6

thyroid cartilage

Question 7

2 vocal ligaments?

Answer 7

1. vestibular fold/false cords

2. vocal fold/true cords

Question 8

vocal cords are above or below the cricoid cartilage?

Answer 8

above

Question 9

what muscle slides the arytenoid cartilages together?

Answer 9

transverse and oblique arytenoids

Question 10

what intrinsic muscles swivel the arytenoids? what direction?

Answer 10

posterior cricoarytenoids: abducts

lateral cricoarytenoids: adducts

Question 11

what relaxes the vocal folds?

Answer 11

vocalis

Question 12

what lengthens vocal folds?

Answer 12

cricothyroid muscle

Question 13

lateral cricoarytenoids do what?

Answer 13

adducts arytenoids

Question 14

vocalis does what?

Answer 14

releaxes vocal folds

Question 15

posterior cricoarytenoids do what?

Answer 15

abducts arytenoids

Question 16

cricothyroid muscle does what

Answer 16

lengthens vocal folds

Question 17

what innervates vocal cords?

Answer 17

recurrent laryngeal nerve

Question 18

what innervates upper larynx?

Answer 18

superior laryngeal from vagus

Question 19

superior laryngeal nerves splits into?

Answer 19

external

internal

Question 20

where is the best place for emergency airway?

Answer 20

cricothyroid membrane puncture

Question 21

what is the piriform recess for?

Answer 21

fluids to runs down when swallowing

Question 22

epiglottis isn’t a perfect seal so what happens when you swallow?

Answer 22

entire larynx and pharynx elevates to make tight seal

Question 23

what is the aryepiglottic fold for?

Answer 23

lateral boundary of laryngeal inlet

Question 24

what 3 nerves innervates the pharynx?

Answer 24

1. trigeminal: pharyngeal brs of maxillary V2
2. CN IX
3. CN X internal laryngeal nerve

Question 25

what innervates stylopharyngeus?

Answer 25

CNIX

Question 26

what innervates sup, mid, inf constrictor, salpingopharyngeus, palatopharyngeus ?

Answer 26

Vagus CN X

Question 27

what does CN X not innervate?

Answer 27

stylopharyngeus