Anatomy of Airway - Exam 1

Question 1

Sternohyoid
-class
-function

Answer 1

Extrinsic, infrahyoid
-depress larynx

Question 2

Sternothyroid
-class
-funciton

Answer 2

Extrinsic Infrahyoid
-depress larynx

Question 3

Omohyoid
-class
-function

Answer 3

extrinsic, infrahyoid
-depress larynx

Question 4

Thyrohyoid
-class
-function

Answer 4

Extrinsic, infrahyoid
-depress hyoid bone, elevates larynx

Question 5

Stylopharyngeus
-class
-function

Answer 5

extrinsic, pharyngeal
-elevate larynx

Question 6

Stylohyoid
-class
-function

Answer 6

extrinsic, suprahyoid
-elevate larynx

Question 7

Geniohyoid
-class
-function

Answer 7

extrinsic, suprahyoid
-elevate larynx

Question 8

Mylohyoid
-class
-fucntion

Answer 8

extrinsic, suprahyoid
-elevate larynx

Question 9

Digastric
-class
-function

Answer 9

extrinsic, suprahyoid
-elevate larynx

Question 10

Posterior Cricoarytenoids
-class
-nerve
-fuction

Answer 10

-intrinsic
-RLN
-ABDuct VC

Question 11

Lateral Cricoarytenoids
-class
-nerve
-function

Answer 11

intrinsic
RLN
ADDuct + lengthen arytenoids causing glottic closure

Lateral Lengthen

Question 12

Interarytenoids
-class
-nerve
-function

Answer 12

intrinsic
RLN
-close posterior commissure of glottis, VC narrow

Question 13

Thyroarytenoids and Vocalis
-class
-nerve
-function

Answer 13

intrinsic
RLN
shorten/relax and ADDuct VC

Question 14

Aryepiglottic
-class
-nerve
-function

Answer 14

intrinsic
RLN
constrict laryngeal vestibule

Question 15

Cricothyroid
-class
-nerve
-function

Answer 15

intrinsic
SLN external branch
ADDuct +increase tension of VC

Question 16

SLN gives sensory input _ the VC

Answer 16

ABOVE

Question 17

SLN motor function

Answer 17

cricothyroid

Question 18

Bounds of hypopharynx/ laryngopharyn

Answer 18

posterior-larynx
superior-epiglottis
inferior-cricoid cartilage

Question 19

RLN sensory input to :

Answer 19

glottic area + trachea

Question 20

RLN motor function to:

Answer 20

all muscles ecxept cricothyroid

Question 21

RLN loops on Rd around _ and on L sd around _

Answer 21

subclavian
aorta

Question 22

During Laryngospasm, which muscles are involved?

Answer 22

Cricothyroid
Thyroarytenoid
Lateral Cricoarytenoid

Question 23

During laryngospasm, which nerves are involved?

Answer 23

Vagus!
-both SLN (cricothyroid) +RLN (lat.cricoarytenoid + thyroarytenoid)

Question 24

LMA base should sit at :

Answer 24

base of tongue

Question 25

LMA tip should sit at:

Answer 25

upper esoph sphincter, cricopharyngeus muscle

Question 26

LMA sides should sit:

Answer 26

piriform sinus