mm of the pharynx

Question 1

superior constrictor muscle origin

Answer 1

• pterygoid hamulus
• pterygomandibular raphe
• posterior aspect of the mylohyoid ridge
• lateral aspect of the tongue

Question 2

superior constrictor muscle insertion

Answer 2

pharyngeal tubercle

pharyngeal raphe

Question 3

superior, middle, and inferior constrictor muscle action

Answer 3

constrict pharynx during swallowing

Question 4

middle constrictor m origin

Answer 4

• lower aspect of stylohyoid ligament

- hyoid bone

Question 5

middle constrictor m insertion

Answer 5

pharyngeal raphe

Question 6

inferior constrictor m origin

Answer 6

• oblique line of thyroid cartilage

- cricoid cartilage

Question 7

inferior constrictor m insertion

Answer 7

pharyngeal raphe

wall of the esophagus

Question 8

stylopharyngeus m origin

Answer 8

styloid process

Question 9

stylopharyngeus m insertion

Answer 9

pharyngeal wall

Question 10

action of stylopharyngeus m

Answer 10

-elevate pharyngeal wall during swallowing and speaking

Question 11

salpingopharygeus m origin

Answer 11

PT tube

Question 12

salpingopharyngeus m insertion

Answer 12

pharyngeal wall

Question 13

salpingopharyngeus m action

Answer 13

• elevate pharyngeal wall during swallowing and speaking

- open orifice of PT tube

Question 14

palatopharyngeus m origin

Answer 14

palatine aponeurosis

hard palate

Question 15

palatopharyngeus m insertion

Answer 15

pharyngeal wall

Question 16

palatopharyngeus m action

Answer 16

• elevate pharyngeal wall during swallowing and speaking
• depress palate and bring arches to the midline
• closes oropharyngeal isthmus

Question 17

all muscles of pharynx are innervated by ___ except ___

Answer 17

all mm are innervated by pharyngeal branch (via pharyngeal plexus) of vagus n except for stylopharyngeus m, which is innervated by pharyngeal branch (via pharyngeal plexus) of glossopharyngeal n, and inferior constrictor m, which is innervated by external laryngeal n of vagus n