Pharynx

Question 1

Superior pharyngeal constrictor origin

Answer 1

• lower 2/3 of medial pterygoid plate
• pterygomandibular raphe
• posterior end of mylohyoid line of mandible

Question 2

Superior pharyngeal constrictor insertion

Answer 2

• upper region of midline pharyngeal raphe

- pharyngeal tubercle of clavicular of occipit

Question 3

Superior pharyngeal constrictor innervation

Answer 3

• pharygeal plexus via pharyngeal branches of vagus

- motor: cranial part of accessory n.

Question 4

Superior pharyngeal constrictor action

Answer 4

• aids in swallowing, force food bolts downward

Question 5

Middle pharyngeal constrictor origin

Answer 5

• lower 1/3 of stylohyoid ligament
• lesser cornu
• superior border of greater cornu of hyoid

Question 6

Middle pharyngeal constrictor insertion

Answer 6

middle portion of pharyngeal raphe

Question 7

Middle pharyngeal constrictor innervation

Answer 7

Same as superior

Question 8

Middle pharyngeal constrictor action

Answer 8

Same as superior

Question 9

Inferior pharyngeal constrictor origin

Answer 9

• cricopharyngeal part: lateral aspect of arch of cricoid cartilage
• thyropharyngeal part: posterior aspect of oblique line of thyroid cartilage and fibrous cricothyroid cartilage

Question 10

Inferior pharyngeal constrictor insertion

Answer 10

Midline pharyngeal raphe

Question 11

Inferior pharyngeal constrictor innervation

Answer 11

Same as superior

Question 12

Inferior pharyngeal constrictor action

Answer 12

Same as superior

- cricopharyngeal part is upper esophageal sphincter

Question 13

Stylopharyngeous origin

Answer 13

Medial aspect of styloid process

Question 14

Stylopharyngeous Insertion

Answer 14

Posterolateral border of thyroid cartilage

Question 15

Stylopharyngeous Innervation

Answer 15

CN IX

Question 16

Stylopharyngeous Action

Answer 16

• Elevate larynx and pharynx

- Open pharynx to allow food bolus through