Muscles of the pharynx

Question 1

Inferior Constrictor

Answer 1

attachments- from the cricoid & thyroid cartilages to median pharyngeal raphe

function- general *sphinchteric & *peristalic action in swallowing

innervation- pharyngeal plexus (X), recurrent laryngeal n & external laryngeal n.

blood supply- ascending pharyngeal & inferior thyroid a

Question 2

Middle Constrictor

Answer 2

attachments- from the greater & lesser cornu of hyoid & stylohyoid ligament to the median pharyngeal raphe

function- general *sphinchteric & *peristalic action in swallowing

innervation- pharyngeal plexus (X)

blood supply- ascending pharyngeal & tonsilar a.

Question 3

Superior Constrictor

Answer 3

attachments- from pterygoid hamulus & pterygomandibular raphe to the median pharyngeal raphe

function- general sphinchteric & peristalic action in swallowing***

innervation- pharyngeal plexus (X)

blood supply- ascending pharyngeal & tonsilar a

Question 4

Salpingopharyngeus

Answer 4

attachments- from the cartilage of the auditory tube to the lateral wall of the pharynx

function- elevation of the superior lateral aspect of the pharyngeal wall

innervation- vagus n.

blood supply- ascending pharyngeal & ascending palatine a

Question 5

Styloharyngeus

Answer 5

attachments- from the styloid process to the posterolateral aspect of the pharyngeal wall.

function- *elevation of the pharyngeal wall

innervation- glossopharyngeal n.

blood supply- ascending pharyngeal a.