MOINA Flashcards
Diaphragm
Phrenic Nerve
Depresses central tendon
External Intercostal
Elevate ribcage
Internal Intercostal (Interosseous)
Role in expiration
Internal Intercostal (Interchondral)
Elevate ribcage
Innermost Intercostal
Role in expiration
Sternocleidomastoid
Elevates sternum -> ribcage
Lateral Cricoarytenoid
CN X RLN
Adducts vocal folds, increases medial compression
Transverse (Inter) arytenoid
CN X RLN
Adducts vocal folds
Oblique (Inter) arytenoid
CN X RLN
Pulls the apex medially (Adductor)
Posterior cricoarytenoid
CN X RLN
Abducts vocal folds
Cricothyroid Muscles
CN X SLN (external)
Tenses vocal folds; depresses thyroid
Thyrovocalis (Medial)
CN X RLN
Tenses vocal folds
Thyromuscularis (Lateral)
CN X RLN
Relaxes vocal folds
Anterior digastricus
CN V
Up and forward hyoid movement
Depresses mandible
Posterior Digastricus
CN VII
Up and back hyoid movement
Depresses mandible
Stylohyoid
CN VII (motor)
Move hyoid up and posteriorly, causing BOT elevation & elongation of mouth floor
Mylohyoid
CN V (mandibular)
Elevate hyoid; Depress mandible
Elevate oral cavity
Geniohyoid
CN XII
Elevate hyoid; Depresses mandible
Hyoglossus
CN XII
Elevate hyoid; Depresses tongue (sides)
Genioglossus
CN XII
Elevate hyoid
Protrude, retract, and depress tongue; cups tongue
Thyropharyngeus (Inferior Pharyngeal Constrictor)
CN X, CN IX
Constricts pharynx, elevates larynx
Sternohyoid
Ansa cervicalis (1-3)
Depresses hyoid
Omohyoid
Ansa cervicalis (1-3)
Depresses hyoid