Whiteboard info from labs Flashcards
Afferent limb of layngospasm
Internal branch of Superior Laryngeal nerve
Efferent limb of laryngospasm 1
External branch of Superior Laryngeal Nerve cricothyroid
Efferent Limb of laryngospasm 2
Nerve and muscles
Recurrect laryngeal nerve: lateral cricothyroid and thyroarytenoid
Number of airways as airway bifuncates
Increases
Total cross section AREA as airway bifuncates
increase
Airflow velocity as airway bifuncates
decreases
Amount of Cartilage as airway bifuncates
decreases
Goblet Cells (produce mucous) as airway bifuncates
decrease
Ciliated cells (clears mucous) as airway bifuncates
decrease
Muscular layer as airway bifuncates
Varies
Superior Laryngeal nerve external:
Sensory or motor?
If motor, which Muscle?
If sensory, where?
Motor
Cricothyroid
Superior Laryngeal nerve internal: sensory or motor?
If motor, which muscle?
If sensory, where?
Sensory
Posterior epiglottis –>level of vocal chords
Recurrent laryngeal nerve:
Motor or sensory?
If motor, which muscle?
If sensory, where?
Motor: All muscles EXCEPT cricothyroid
Sensory: below the level of the vocal chords
Trigeminal nerve aka
Cranial nerve V
Trigeminal includes what branches?
V1, V2, V3
Trigeminal nerve provides where sensory info?
Face and head
Trigeminal V1 sensory functions:
nares
anteror 1/3 of nasal septum
Trigeminal nerve V1 motor function
none
Trigeminal nerve V1 aka
Opthalmic nerve
Trigeminal nerve V2 sensory functions:
Anterior 2/3 of tongue
Septum
Turbinates
Trigeminal nerve V2 aka
Maxillary nerve
Trigeminal nerve V2 motor fucntion
none!
Trigeminal V3 aka
Mandibular
Trigeminal V3 sensory function:
Floor of mouth, jaw
Glossopharyngeal nerve aka
Cranial Nerve IX
Glossopharyngeal nerve sensory functions:
Soft palate
oropharynx
tonsils
Poterior 1/3 of tounge
Glossopharyngeal motor functions
Phonation
Swallowing
MAC effect young age
increases
MAC effect red hair
increases
MAC effect hyperthermia
increases
MAC effect chronic ETOH
increases
MAC effect acute admin of amphetamine
increases
MAC effect pregnancy
decreases
MAC effect older age
decreases
MAC effect Hypothermia
decreases
MAC effect hypoxemia and hypotension
decreases
MAC effect acute ETOH
decreases
MAC effect gender
no effect
MAC effect Hypo/hypercapnia
no effect
MAC effect muscle relaxants
no effect
MAC effect hypertension
no effect
MAC effect hyperthyroidism/hypothyroidism
no effect
GABA a receptor basic MOA
Stimulates inhibitory pathway
Glycine channel basic MOA
Stimulate inhibitory pathway
Potassium channel basic MOA
Stimulate inhibitory pathway
NMDA receptors basic MOA
Inhibit excitatory pathway
Nicotinic receptors basic MOA
inhibit excitatory pathway
Sodium channels basic MOA
inhibit excitatory pathway
Dendritic spin function motility basic MOA
inhibit excitatory pathway
Intrinsic or extrinsic laryngeal muscle:
Interarytenoid
Intrinsic
Intrinsic or extrinsic laryngeal muscle:
Lateral cricoarytenoid
Intrinsic
Intrinsic or extrinsic laryngeal muscle:
Thyroarytenoid
Intrinsic
Intrinsic or extrinsic laryngeal muscle:
Aryepiglottic
Intrinsic
Intrinsic or extrinsic laryngeal muscle:
Vocalis
Intrinsic
Intrinsic or extrinsic laryngeal muscle:
omohyoid
Extrinsic
Intrinsic or extrinsic laryngeal muscle: Mylohyoid
Extrinsic
Intrinsic or extrinsic laryngeal muscle: Thyrohyoid
Extrinsic
Intrinsic or extrinsic laryngeal muscle: cricothyroid
Extrinsic
Intrinsic or extrinsic laryngeal muscle: digastric
Extrinsic
Intrinsic or extrinsic laryngeal muscle: sternohyoid
Extrinsic
Muscles of the superior laryngeal nerve:
Cricothyroid
(SCAR)
Muscles of the recurrent laryngeal nerve:
All other intrinsic muscles
(SCAR)
Laryngospasm treatment: (steps)
- 100% FIO2
- Remove noxious stimuli
- Deepen anesthesia
- CPAP 15-20 cm H2O while Larson’s manuever
- Administer succ IV or IM