Pharyngeal Muscles

Question 1

what phayngeal constrictor forms the side and back of the nasopharynx and part of the back of the oropharynx?

Answer 1

superior pharyngeal constrictor m.

Question 2

best for viewing soft tissue - bone is opaque

Answer 2

ultrasound imagin

Question 3

cannot see movement of articulators with this instrumentation

Answer 3

functional magnetic resonance imaging (best for brain)

Question 4

the pharyngeal constrictor muscles make up the ______ and _______ walls of the pharynx

Answer 4

posterior and lateral

Question 5

this portion of the inferior pharyngeal constrictor m. is also known as the upper esophageal sphincter (UES)

Answer 5

cricopharyngeal muscle/cricopharyngeus

Question 6

what is the origin and insertion of the stylopharyngeus?

Answer 6

origin: styloid process
insertion: pharyngeal constrictors and posterior thyroid cartilage

Question 7

this portion of the inferior pharyngeal constrictor m. reduces the diameter of the lower pharynx

Answer 7

thyropharyngeus

Question 8

the inferior pharyngeal constrictor m. portions are innervated by what?

Answer 8

Vagus nerve (X), however the circopharyngeal is also innervated by RLN

Question 9

what is the origin and insertion of the superior pharyngeal constrictor?

Answer 9

origin: ptyergomandibular raphe
insertion: median pharyngeal raphe (of the pharyngeal aponeurosis)

Question 10

what is the innervation of the superior pharyngeal constrictor?

Answer 10

CN IX (glossopharyngeal) and X (vagus) via the pharyngeal plexus

Question 11

what is the function of the salpingopharyngeus?

Answer 11

elevates the lateral pharyngeal wall

Question 12

what is the innervation of the salpingopharyngeus?

Answer 12

CN X and XI (spinal accessory) via pharyngeal plexus

Question 13

what is the origin and insertion of the sapingopharyngeus?

Answer 13

origin: lower margin of auditory tube
insertion: palatopharyngeus muscle

Question 14

this portion of the inferior pharyngeal constrictor m. relaxes during swallowing

Answer 14

cricopharyngeal muscle

Question 15

what are the two portions of the inferior pharyngeal constrictor m.?

Answer 15

thyropharyngeus and cricopharyngeal muscle

Question 16

what is the origin and insertion of the middle pharyngeal constrictor m.?

Answer 16

origin: horns of hyoid bone & stylohoid ligament
insertion: median pharyngeal raphe (of the pharyngeal aponeurosis)

Question 17

this portion of the inferior pharyngeal constrictor m. arises from the oblique line of thyroid lamina and inserts into the median pharyngeal raphe

Answer 17

thyropharyngeus

Question 18

What is the purpose of the phyarngeal constrictor muscules?

Answer 18

narrow the diameter of the pharynx

Question 19

what pharyngeal constrictor constricts the diameter of the laryngopharynx & superior orifice of the esophagus?

Answer 19

inferior pharyngeal constrictor m.

Question 20

this portion of the inferior pharyngeal constrictor m. arises from the cricoid

Answer 20

cricopharyngeal muscle

Question 21

what is the function of the middle pharyngeal constrictor m.?

Answer 21

narrows the diameter of the pharynx when contracted

Question 22

what is the function of the superior pharyngeal constrictor?

Answer 22

pulls pharyngeal wall forward and constricts pharyngeal diameter (helping with VP closure)

Question 23

this portion of the inferior pharyngeal constrictor m. is tonically contracted

Answer 23

cricopharyngeal muscle

Question 24

what is the innervation of the stylopharyngeus?

Answer 24

elevates and opens the pharynx (especially during deglutition)

Question 25

what is the innervation of the middle pharyngeal constrictor m.?

Answer 25

CN IX (glossopharyngeal) and X (vagus) via pharyngeal plexus

Question 26

moving xray but has radiation risk

Answer 26

cineradiology

Question 27

what does the superior pharyngeal constrictor make up?

Answer 27

side and back of the nasopharynx and part of back of oropharynx