lateral cricoarytenoid
thyrovocalis
sternothyroid
digastricus anterior
thyrohyoid
omohyoid superior head
sternohyoid
omohyoid inferior head
posterior cricoarytenoid
oblique arytenoid
stylohyoid
mylohyoid
transverse arytenoid
geniohyoid
digasticus posterior
Cricothyroid
thyromuscularis
retracts the larynx/hyoid, elevates the larynx/hyoid, suprahyoid
originates at the upper border of scapula, depresses hyoid, infrahyoid
adduct, intrinsic, pulls apex medially
moves larynx forward, elevates larynx/hyoid, suprahyoid
adduct, intrinsic, increase medial compression
depresses mandible, elevates larynx/hyoid, suprahyoid
adduct, (vital in vocal intensity), intrinsic
depresses hyoid, infrahyoid
pars recta/oblique, tensor, pitch change, intrinsic
tensor, part of thyroarytenoid, intrinsic
originates at the intermediate tendon, depresses hyoid, infrahyoid
elevates larynx, depresses hyoid, extrinsic
abduct, instrinsic
moves larynx back, elevates larynx/hyoid, suprahyoid
depresses larynx/hyoid, extrinsic
depresses mandible, moves laryngeal forward, elevates the larynx/hyoid, suprahyoid
relaxor, part of thyroarytenoid, intrinsic
intrinsic
two movements of the larynx
infrahyoid
tensors
thyroarytenoid
elevators
depressors
Extrinsic
adduct
relaxors
abduct
Suprahyoid
combination of thyrovocalis and thyromuscularis
laryngeal support and fixation one component outside the larynx 2
provide adjustment for phonation Both components in the larynx 6
5
7
forward and back 2:1
muscles that elongate and tense the vocal folds 2
to bring together 3
laryngeal elevators (above the hyoid) 5
to come apart 1
laryngeal depressors 2 (but 1 has 2 heads)
muscles that relax and shorten the VF 1
