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Terms in this set (1357)
Muscle that tenses vocal cords Cricothyroid
Muscle that relaxes vocal cords Thyroarytenoid
Muscle that abducts vocal cords Posterior cricoarytenoid
Muscle that adducts vocal cords Lateral cricoarytenoid
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Sensory innervation of upper airway Trigeminal nerve:
V1 (ophthalmic) - nares + anterior 1/3 septum
V2 (maxillary) - turbinates + septum
V3 (mandibular) - anterior 2/4 tongue
Glossopharyngeal nerve:
Posterior 1/3 tongue/soft palate/oropharynx
Vallecula, anterior epiglottis
Vagus nerve:
SLN (internal branch): posterior epiglottis to vocal
cords
RLN: below vocal cords to trachea
Superior laryngeal nerve external Motor to cricothyroid muscle
branch
Superior laryngeal nerve internal Sensory posterior epiglottis to vocal cords
branch
Recurrent laryngeal nerve Sensation below vocal cords to trachea
Motor: all intrinsic Laryngeal muscles except
cricothyroid
Recurrent laryngeal nerve injury Bilateral acute: respiratory distress due to
unopposed action of cricothyroid muscles
Bilateral chronic and unilateral = no respiratory
distress
Superior laryngeal nerve injury No respiratory distress but possible voice changes
/hoarseness
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Glossopharyngeal nerve block Anterior tonsilar pillar
location
Superior laryngeal nerve block Greater corneu of hyoid bone
location
Transtracheal nerve block location Cricothyroid membrane
3 paired cartilages of larynx Corniculate
Arytenoid
Cuneiform
3 unpaired cartilages of the larynx Epiglottis
Thyroid
Cricoid
Adult larynx spinal levels C3-C6
Where do vocal cords attach? Anteriorly: thyroid cartilage
Posteriorly: arytenoids
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Laryngospasm risk factors Recent URI
Infants/young children
Asthma
Smoking
ASA 4, prematurity, GERD, OSA
Airway procedures (T&A)
Muscles of inspiration Diaphragm, external intercostals
Accessory muscle of inspiration Sternocleidomastoid
Scalene
Muscles of active expiration Transverse abdominis
Internal obliques
Rectus abdominis
External obliques
(I let the air out of my "tire"s)
V/Q ratio > 1 Dead space
V/Q ratio < 1 Shunt
Normal minute ventilation 4 L/min
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NBCRNA Review EXAM QUESTIONS AND
VERIFIED SOLUTIONS |2026| Exam Questions &
Answers Test || ELABORATED &DETAILED
ANSWERS!!
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Terms in this set (1357)
Muscle that tenses vocal cords Cricothyroid
Muscle that relaxes vocal cords Thyroarytenoid
Muscle that abducts vocal cords Posterior cricoarytenoid
Muscle that adducts vocal cords Lateral cricoarytenoid
https://quizlet.com/1193390244/nbcrna-review-exam-questions-and-verified-solutions-2026-exam-questions-answers-test-elaborated-detailed-answ… 1/193
,7/6/26, 2:59 PM NBCRNA Review EXAM QUESTIONS AND VERIFIED SOLUTIONS |2026| Exam Questions & Answers Test || ELABORATED &DET…
Sensory innervation of upper airway Trigeminal nerve:
V1 (ophthalmic) - nares + anterior 1/3 septum
V2 (maxillary) - turbinates + septum
V3 (mandibular) - anterior 2/4 tongue
Glossopharyngeal nerve:
Posterior 1/3 tongue/soft palate/oropharynx
Vallecula, anterior epiglottis
Vagus nerve:
SLN (internal branch): posterior epiglottis to vocal
cords
RLN: below vocal cords to trachea
Superior laryngeal nerve external Motor to cricothyroid muscle
branch
Superior laryngeal nerve internal Sensory posterior epiglottis to vocal cords
branch
Recurrent laryngeal nerve Sensation below vocal cords to trachea
Motor: all intrinsic Laryngeal muscles except
cricothyroid
Recurrent laryngeal nerve injury Bilateral acute: respiratory distress due to
unopposed action of cricothyroid muscles
Bilateral chronic and unilateral = no respiratory
distress
Superior laryngeal nerve injury No respiratory distress but possible voice changes
/hoarseness
https://quizlet.com/1193390244/nbcrna-review-exam-questions-and-verified-solutions-2026-exam-questions-answers-test-elaborated-detailed-answ… 2/193
,7/6/26, 2:59 PM NBCRNA Review EXAM QUESTIONS AND VERIFIED SOLUTIONS |2026| Exam Questions & Answers Test || ELABORATED &DET…
Glossopharyngeal nerve block Anterior tonsilar pillar
location
Superior laryngeal nerve block Greater corneu of hyoid bone
location
Transtracheal nerve block location Cricothyroid membrane
3 paired cartilages of larynx Corniculate
Arytenoid
Cuneiform
3 unpaired cartilages of the larynx Epiglottis
Thyroid
Cricoid
Adult larynx spinal levels C3-C6
Where do vocal cords attach? Anteriorly: thyroid cartilage
Posteriorly: arytenoids
https://quizlet.com/1193390244/nbcrna-review-exam-questions-and-verified-solutions-2026-exam-questions-answers-test-elaborated-detailed-answ… 3/193
, 7/6/26, 2:59 PM NBCRNA Review EXAM QUESTIONS AND VERIFIED SOLUTIONS |2026| Exam Questions & Answers Test || ELABORATED &DET…
Laryngospasm risk factors Recent URI
Infants/young children
Asthma
Smoking
ASA 4, prematurity, GERD, OSA
Airway procedures (T&A)
Muscles of inspiration Diaphragm, external intercostals
Accessory muscle of inspiration Sternocleidomastoid
Scalene
Muscles of active expiration Transverse abdominis
Internal obliques
Rectus abdominis
External obliques
(I let the air out of my "tire"s)
V/Q ratio > 1 Dead space
V/Q ratio < 1 Shunt
Normal minute ventilation 4 L/min
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