Pharyngeal Constrictors Flashcards
1
Q
Superior Constrictor
A
Origin: lower posterior border of medial pterygoid plate, hamulus, mylohyoid line of mandible, and intervening pteryogomandibular raphe
Insertion: pharyngeal tubercle and pharyngeal raphe
Innervation: CN X (pharyngeal branches)
Action: constrict pharynx
2
Q
Middle Constrictor
A
Origin: lesser and greater horns of hyoid and lower portion of stylohyoid ligament
Insertion: pharyngeal raphe
Innervation: CN X (pharyngeal branches)
Action: constrict pharynx
3
Q
Inferior Constrictor
A
Origin: oblique line of thyroid cartilage, cricoid catilage, and teh tendinous arch between them
Insertion: pharyngeal raphe
Innervation: CN X (pharyngeal branches)
Action: constrict pharynx