Muscles of the Pharynx

Question 1

Superior Pharyngeal Constrictor

Answer 1

lower third of posterior border of the medial
pterygoid lamina, pterygo- mandibular raphe & alveolar process of mandible.

median pharyngeal raphe and pharyngeal
tubercle of occipital bone

peristaltic, sphincter action on upper pharynx

Pharyngeal plexus

Question 2

Middle Pharyngeal Constrictor

Answer 2

both horns of hyoid bone and stylohyoid Ligament

median raphe of pharynx

peristaltic, sphincter action on middle pharynx

Pharyngeal plexus

Question 3

Inferior Pharyngeal Constrictor

thyropharyngeus = upper portion
cricopharyngeus = lower portion

Answer 3

oblique line of thyroid cartilage; side of cricoid cartilage

posterior median raphe of pharynx; lower fibers blend with esophagus

peristaltic, sphincter
action on pharynx; thyropharyngeus propulsive during swallowing; crico- pharyngeus sphincteric relaxes during swallowing

Pharyngeal plexus; External Laryngeal branch of X; Internal (Recurrent) branch of X

Question 4

Palatopharyngeus

Answer 4

soft palate and wall of pharynx

posterior border of thyroid cartilage

elevate & pull pharynx anteromedially during swallowing

Pharyngeal plexus

Question 5

Stylopharyngeus

Answer 5

medial side of styloid process

superior and posterior posterior borders of thyroid cartilage

elevation of pharynx

muscular branch of IX

Question 6

Salpingopharyngeus

Answer 6

pharyngeal end of auditory tube

blends with posterior fasiculus of palatopharyngeus wall

elevation of upper, lateral pharyngeal

Pharyngeal plexus