AIRWAYS midterm

Question 1

% of normal mouth opening due to initial opening action

Answer 1

50

Question 2

% of normal mouth opening due to last opening

Answer 2

50

Question 3

actions of effort closure

Answer 3

valsalva

Question 4

airway mgmt of edentulous

Answer 4

oral airway, pull skin to mask

Question 5

anatomic location of nasal airway

Answer 5

tip through vestibule, direct it 90 degrees to long axis

Question 6

angles of mainstem bronchi

Answer 6

R=20 / L=40

Question 7

articulation of C2

Answer 7

dens to C1

Question 8

atlanto-occipital gap normal value

Answer 8

35 degrees

Question 9

calculation, time constant, pre-ox

Answer 9

3 time constants = 95% change. This is the typical end-point used in medicine. Time constant = volume (FRC)/ flow (VA = (tidal volume _ dead space) x respiratory rate).

Question 10

cervical level of cricoid cartilage

Answer 10

C6

Question 11

compoinets of the nasal septum

Answer 11

perpendicular plate of ethmoid, vomer, septal cartilage

Question 12

cranial nerve- sensory innervation of face

Answer 12

trigeminal

Question 13

cuneiform cartilages function

Answer 13

open glottis, spring-like action

Question 14

definition of micrognathia

Answer 14

small mandible

Question 15

definition of overjet

Answer 15

increased horizontal distance bt max and mand central incisors

Question 16

desat, FRC, weight

Answer 16

VO2 = kg^0.75; minutes to hypoxia = FRC/VO2; so the more a patient weighs the less time they have before they start to desaturate.

Question 17

describe thyrohyoid membrane

Answer 17

Thyroid cartilage is attached to hyoid bone by thyrohyoid membrane

Question 18

digits applying pressure to mask during bag/mask

Answer 18

thumb, index

Question 19

DL, axial alignment

Answer 19

sheets=laryngeal, sniffing=pharyngeal, DL=oral

Question 20

ETT connector

Answer 20

15mm OD tapered

Question 21

ETT taping

Answer 21

zygomatic

Question 22

Eustachian tube

Answer 22

connects nasal cavity to middle ear, maintain pressure in ear

Question 23

facets for atlanta-occipital engagement

Answer 23

connect TO occipital bone

Question 24

four functions of larynx

Answer 24

phonation, conduction, protection, effort closure

Question 25

function of the inferior pharyngeal constrictor

Answer 25

lower segment remains closed except for bolus passage

Question 26

functions of the nasal sinuses

Answer 26

humidifying and warming inspired air

Question 27

general functions of the human airway

Answer 27

protection, conduction, air conditioning

Question 28

largest facial bone

Answer 28

mandible

Question 29

larynx closure during deglugition

Answer 29

pharyngeal

Question 30

larynx, axial alignment

Answer 30

sheets

Question 31

location of zenker's diverticulum

Answer 31

90% left side

Question 32

lubricant for stylet

Answer 32

eye?

Question 33

lung capacity involved in denitrogenation

Answer 33

FRC

Question 34

mandible anatomy

Answer 34

ramus

Question 35

mechanical alteraion of food during deglugition

Answer 35

oral phase

Question 36

mgmt of incorrectly inserted OG tube

Answer 36

give continuous positive pressure and hold

Question 37

molecular weight of 02

Answer 37

32 daltons

Question 38

nasal attachments of conchae

Answer 38

the lateral walls of nasal cavity, upper 2 from ethmoid, bottom is separate structure

Question 39

nasopharynx occlusion during deglugition

Answer 39

pharyngeal

Question 40

peristalsis of food bolus during deglgition

Answer 40

pharyngeal/esophogeal

Question 41

preoxygenation physiology

Answer 41

calculate FRC (30-35 ml/kg)

Question 42

RUL bronchus occlusion by ETT

Answer 42

RUL 2cm, 20 degree angle

Question 43

suspension and stabilization of the larynx

Answer 43

hyoid bone

Question 44

TMJ compartments for initial and late mouth opening

Answer 44

inferior=rotation=early mouth opening, superior=gliding=late mouth opening

Question 45

TMJ, two joints of action

Answer 45

gliding and rotation, 50/50

Question 46

tooth numbers by name

Answer 46

start upper right 3rd molar (molar, molar, molar, bicuspid, bicuspid, cuspid, lateral incisor, central incisor)

Question 47

trachea sensory innervation

Answer 47

vagus

Question 48

true joints in the larynx

Answer 48

cricoarytenoid

Question 49

volume of ETT (pi r^2 h)

Answer 49

3mm radius, 200mm height

Question 50

superior facets of atlas articulate with what?

Answer 50

occipital condyles

Question 51

level of hyoid bone

Answer 51

C3

Question 52

vocal cords where during end-expiration?

Answer 52

paramedian

Question 53

where are vocal cords when patient breathes quietly?

Answer 53

intermediate

Question 54

where are vocal cords during maximum inspiration?

Answer 54

lateral

Question 55

3 types of hyaline cartilage in larynx

Answer 55

cricoid, artyenoid, thyroid

Question 56

elastic cartilage in larynx

Answer 56

epiglottic, corniculate, cuneiform

Question 57

2 main joints of larynx

Answer 57

cricoarytenoid, cricothyroid