3 terms

Constrictors pharyngis

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M. Constrictor Pharyngis superior
Origins: pars pterygopharyngea: lam. Med. proc. pterygoideus
Pars buccopharyngea: raphe pterygomandibulare
Pars mylopharyngea: lineae mylohyoidea
Pars glossopharyngea: margin of tongue

Insertion: membrana pharyngobasilaris + sup. 1/3rd of raphe pharyngis

Innervation: plexus pharyngealis

Function: seals isthmus between oro and naso pharynx
M. Constrictor pharyngis medius
Origins: pars chondropharyngea: cornu minus ossis hyoidei
Pars ceratopharyngea: cornus majus ossis hyoidei

Insertion: middle 1/3rd of raphe pharyngealis

Innervation: plexus pharyngealis

Function: constricts
M. Constrictor inferior
Origins: pars thyropharyngea: linea obliqua cartilaginis thyroideae
Pars cricopharyngea: cartilago cricoidea

Insertion: middle + inferior 2/3rds of raphe pharyngealis

Innervation: plexus pharyngealis

Function: Constricts
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