Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
6 Cards in this Set
- Front
- Back
|
CN X - Name - Type - Origin |
- Vagus - Mixed - Originates: Medulla |
|
|
CN X - Motor Innervation (by branch) |
- Recurrent Laryngeal ~ all intrinsic laryngeal muscles (NOT cricothyroid) - Superior Laryngeal ~ Internal: Sensory only ~ External: crycothyroid - Pharyngeal ~ muscles of phraynx ~ muscles of soft palate |
|
|
CN X - Sensory Innervation (by branch) |
- Recurrent Laryngeal ~ gen sensation to true vocal folds and area directly below them - Superior Laryngeal ~ Internal: epiglottis, base of tongue, aryepiglottal folds, inner larynx ~ External: motor only - Pharyngeal ~ motor only |
|
|
CN X - Function (Motor and Sensory) |
Motor - Voice production (recurrent laryngeal) - Velopharyngeal closure (pharyngeal branch) - Swallowing (all branches) Sensory - Triggering pharyngeal phase of swallow - Triggering cough reflex - Detection of food/liquid residue after swallow |
|
|
CN X - Damage |
- Palatal F(x) ~ Asymmetry ~ No gag - Laryngeal F(x) ~ vocal quality ~ blurred attack for glottal coup and voluntary cough |
|
|
CN X - Damage (UMN vs LMN) |
** bilaterally innervated ** Unilateral - UMN: no overt symptoms - LMN: ipsilateral paresis/paralysis Bilateral - UMN: Strained vocal quality & sig hypernasality - LMN: bilateral paresis/paralysis |
