Mediastinum
3
Plate230
TopographyandConstrictionsofEsophagus
Incisor tooth
Oropharynx
Epiglottis
0
Piriform fossa (recess)
Thyroid cartilage
Cricoid cartilage
Thyroid cartilage
Cricoid cartilage
Cricopharyngeus (muscle)
part of inferior pharyngeal
constrictor muscle
Pharyngo-
esophageal
constriction
16
23
38
40
Average length in centimeters
Thoracic
(aortobronchial)
constriction
Trachea
Arch of aorta
Left main
bronchus
Cricopharyngeus
(muscle) part of
inferior
pharyngeal
constrictor
muscle
Diaphragm
Abdominal part
of esophagus
Cardiac part
of stomach
Diaphragmatic
constriction
(inferior
esophageal
“sphincter”)
Fundus of stomach
Diaphragm
Lateral view
L3
L1
T9
T7
T5
T3
T1
C6
C4
7
6
5
4
3
2
T11
Trachea
Esophagus
Arch of aorta
Inferior pharyngeal
constrictor muscle
Heart in
pericardium
