Pharynx
1
PharyngoesophagealJunction
Plate69
Superior pharyngeal constrictor muscle
Root of tongue
Epiglottis
Middle pharyngeal constrictor muscle
Palatopharyngeus muscle
Stylopharyngeus muscle
Longitudinal
pharyngeal
muscles
Pharyngoepiglottic fold
Laryngeal inlet (aditus)
Thyroid cartilage (superior horn)
Thyrohyoid membrane
Internal branch of superior laryngeal
nerve and superior laryngeal artery
and vein
Oblique arytenoid muscle
Transverse arytenoid muscle
Thyroid cartilage
Posterior crico-arytenoid muscle
Inferior pharyngeal constrictor muscle
(thyropharyngeus)
Pharyngeal aponeurosis (
cut away
)
Cricoid cartilage (lamina)
Cricopharyngeus (muscle) part of inferior
pharyngeal constrictor
Circular esophageal muscle
Esophageal mucosa and submucosa
Circular muscle in V-shaped area (of Laimer)
Right recurrent laryngeal nerve
Crico-esophageal tendon
(attachment of longitudinal esophageal muscle)
Longitudinal esophageal muscle
Window cut in longitudinal muscle
exposes circular muscle layer
Posterior view with
pharynx opened and
mucosa removed
Zone of sparse muscle fibers
