pharynx muscles

Question 1

superior constrictor

Answer 1

bony attachment: Pterygoid hamulus, pterygomandibular raphe, posterior end of mylohyoid line of the mandible and side of tongue

other attachment: Pharyngeal raphe

action: Constrict walls of pharynx during swallowing

Question 2

middle constrictor

Answer 2

bony attachment: Stylohyoid ligament and greater and lesser horns of hyoid bone

other attachment: Pharyngeal raphe

action: constrict walls of pharynx during swallowing

Question 3

inferior constrictor

Answer 3

bony attachment: Oblique line of thyroid cartilage and side of cricoid cartilage

other attachement: Pharyngeal raphe

action: constrict walls of pharynx during swallowing

Question 4

salpingopharyngeus

Answer 4

bony attachment:Cartilaginous part of pharyngotympanic tube

other: Blends with palatopharyngeus muscle
action: Elevate (shorten and widen) pharynx and larynx during swallowing and speaking

Question 5

stylopharyngeus

Answer 5

bony attachment: Styloid process of the temporal bone

other: Posterior and superior borders of thyroid cartilage with palatopharyngeus muscle
action: Elevate (shorten and widen) pharynx and larynx during swallowing and speaking

Question 6

palatopharyngeus

Answer 6

bony attachment: Hard palate and palatine aponeurosis

other: Posterior border of lamina of thyroid cartilage and side of pharynx and oesophagus
action: Elevate (shorten and widen) pharynx and larynx during swallowing and speaking

Question 7

what is the innervation of the pharynx muscles?

Answer 7

all innervated by pharyngeal branch of vagus and pharyngeal plexus
except for stylopharyngeus which is innervated by the glossopharyngeal nerve