Muscles of the Pharynx and Swallowing

Question 1

Superior pharyngeal constrictor

Answer 1

O: hamulus, pterygomandibular raphe, mylohyoid line of mandible
I: median raphe of pharynx
I: Vagus nerve via pharyngeal plexus
A: constricts wall of pharynx during swallowing

Question 2

Middle pharyngeal constrictor

Answer 2

O: stylohyoid ligament and horns of hyoid bone
I: median raphe of pharynx
I: Vagus nerve via pharyngeal plexus
A: constricts wall of pharynx during swallowing

Question 3

Inferior pharyngeal constrictor

Answer 3

O: oblique line of thyroid cartilage, and cricoid cartilage
I: median raphe of pharynx
I: Vagus nerve via pharyngeal plexus
A: constricts wall of pharynx during swallowing

Question 4

Salpingopharyngeus

Answer 4

O: auditory (pharyngotympanic) tube
I: side of pharynx wall
I: Vagus nerve via pharyngeal plexus
A: elevates pharynx and larynx during swallowing and speaking

Question 5

Stylopharyngeus

Answer 5

O: medial aspect of styloid process
I: pharyngeal wall and posterior boarder of thyroid cartilage
I: Vagus nerve via pharyngeal plexus
A: elevates pharynx and larynx during swallowing and speaking